Obenberger J., Ogloblin A. A., : G. G. Jakobson. 3 pp.
 
GLG 89
Ohguchi T., Tiba T., 1987: Neogene volcanism in the northern Honshu, Japan. Part 1. Historical change of volcanic fields. 11 pp. (in Japanese). Memoirs of the National Science Museum 20: 15-25 pp.
 
GLG 90
Ohguchi T., Tiba T., 1987: Neogene volcanism in the northern Honshu, Japan. Part 2. Mode of occurrences of volcanic rocks along the north coast of the Tsugaru Peninsula. 9 pp. (in Japanese). Memoirs of the National Science Museum 20: 27-35.
 
TRV 115
Ohlin A., 1898: A zoologist in Tierra del Fuego: some account of the Swedish expedition, 1895-96. 10 pp. (in English). Natural Science 9(55): 172-181.
 
95283
Ohly J., 1985: Die Wasserbüffelwirtschaft am mittleren Amazonas aus der Sicht der jüngsten Entwicklungen. 17 pp. Amazoniana 9(3): 441-457.
 
ZME 804001
Oijen M. J. P. van, Ligny W. de, 2006: Marinus Boeseman, 1916-2006, a biography and a list of his publications. 8 pp. Zoologische Mededelingen Leiden 80(4): 1-8.
 
95521
Oka A., 1922: A criticism on the present civilization. 26 pp. (in English).
 
MUZ 36
Okáli I., 1983: Činnosť Slovenskej entomologickej spoločnosti pri SAV v rokoch 1977 až 1982. 12 pp.
 
95134
Okazawa T., 1975: Aquatic insect survey of the river Kaunnai, with special reference to the Rockey Chute Bed fauna. 16 pp. Kontyu, Tokyo 43(4): 497-512.
 
95522
Oldekop E., 1930: Über das Hierarchische Prinzip in der Natur und seine Beziehungen zum Mechanismus-Vitalismus-Problem. 64 pp. (in German).
 
REP 175
Olexa A., 1962: Über die Haltung des Bunten Zwergchamäleons Microsaurus pumilus Daud. 9 pp. (in German). [M52] Aquarien und Terrarien: 33-41.
 
AGR 52
Oliveira A. N., Oliveira L. A., Figueiredo A. F., 2003: Arbuscular mycorrhizal colonization and nutrient concentration of three cultivars of banana on a Central Amazonian Oxisol. 8 pp. Acta Amazonica 33(3): 345-352.
 
BIO 146
Olson C. A., 1994: Floyd Gerald Werner 1921-1992. 12 pp. (in English). Psyche 101(1-2): 1-12.
 
WLC 21
Oordt G. J. van, 1935: De staatsnatuurreservaten. 8 pp. (in Dutch).
 
95523
Origonis P., 1843: Von der Erzeugung und ihren Theorien. 20 pp. (in German).
 
GLG 95
Örkényi-Bondor L., 1974: The plagioclase crystals of the andesite agglomerate from Csattogó Hill in Börzsöny Mountains (Hungary). 18 pp. Ann. Hist.-nat. Mus. Nat. Hung. 66: 5-22.
 
95327
Ortiz-Sánchez F. J., 2007: Charles Duncan Michener (1918-), una larga vida dedicada a la Entomología (I). Biografía y publicaciones. 47 pp. (in Spanish). Boletin de la Asociación espanola de Entomología 31(1-2): 17-63.
 
EFA 1534
Ortiz-Sánchez F. J., Tinaut A., 1994: Efecto de la polinazición mediante insectos sobre la producción en una variedad híbrida de girasol (Helianthus annus L.) en el sur de Espana. 8 pp. [M23] Entomofauna 15/34.
 
8370
Ouchi Y., 1936: 1935 supplements to Bibliographical introduction to the study of Chinese insects. 96 pp.
 
95138
Ozereckovskaya N. G., Smirnova N. F., 1959: Gidrochimičeskie issledovania r. Psekups i prudov Krasnodarskogo kraja v svjazi s udobreniem. 33 pp.
 
APT 314
Pagés J., : Biospeologica LXXV. Mission Henri Coiffait au Liban (1951). 5. Diploures Japygidés. 9 pp.
 
8509
Painter R., 1953: Insect resistance in crop plants. 442 pp. (in Russian).
 
ASN 121
Pajot F. X., 1995: Description de Prolinognathus marouaensis n. sp. du groupe foleyi, parasite de l’Hyracoide Procavia capensis, et redescription de P. faini Benoit, 1961 (Anoplura, Linognathidae). 8 pp.
 
COL 724
Palásek J., 1966: Příspěvek k poznání choriocenóz v hromadách tlející bramborové natě (Coleoptera). 6 pp.
 
HNR 110
Palmán J. A., 1893: Det zoologiska sommarlaboratoriet pa Esbo-Löfö. 9 pp. (in Swedish). Meddel af Soc. pro Fauna et Flora fennica 19: 101-109.
 
95284
Panosso R. de F., Muehe D., Esteves F. de A., 1995: Morphological characteristics of an Amazon floodplain lake (Lake Batata, Pará State, Brazil). 14 pp. Amazoniana 13(3-4): 245-258.
 
95285
Paolini J., 1979: Huminstoffsystem in der Caatinga amazonica bei San Carlos de Rio Negro, Venezuela. 14 pp. Amazoniana 6(4): 569-582.
 
EAF 29001
Papp C. S., Seeno T. N., 1981: Zoltán Kaszab. A personal tribute on the occasion of his 65th birthday [with bibliography]. 73 pp. [M14]
 
FEH 25187
Papp J., Horvatovich S., 1972: Zoological collectings by the Hungarian Natural History Museum in Korea. 2. A report on the collecting of the second expedition. 41 pp. [95142] Folia Entomologica Hungarica (S.N.) 25: 187-227.
 
FEH 271161
Papp J., Reichart G., 1974: Study on the structure of moth communities living on pomaceous plants in Hungary, according to G. Szelényi’s zoocenological concepts. 5 pp. (in English). Folia Entomologica Hungarica (S.N.) 27(1): 161-165.
 
FEH 291059
Papp J., Vojnits A., 1976: Zoological collectings by the Hungarian Natural History Museum in Korea. 27. A report on the collecting of the third expedition. 16 pp. [TRV 40] Folia Entomologica Hungarica (S.N.) 29(1): 59-74.
 
FEH 282321
Papp L., 1975: A report on a zoological study and collecting trip to Afghanistan. 16 pp. [TRV 41] Folia Entomologica Hungarica (S.N.) 28(2): 321-336.
 
60987
Papp L., Plachter H., 1976: On cave-dwelling Sphaeroceridae from Hungary and Germany (Diptera). 13 pp.
 
MUZ 67
Paquette R. G., Scott E. L., Sund P. N., 1961: An enlarged clarke-bumpus plankton sampler. 4 pp. (in English). Limnology and Oceanography 6(2): 230-233.
 
AGR 159
Parrott W. L., 1990: Plant resistance to insects in cotton. 5 pp. (in English). Florida Entomologist 73(3): 392-396.
 
KLA 34139
Patočka J., 1998: Doc. Ing. Miroslav Čapek, DrSc. – sedmdesátník. 8 pp. [M52] Klapalekiana 34(1-2): 139-146.
 
GLG 96
Pauca M., 1968: Nouvelles données sur la tectonique du Bassin de Transylvanie. 14 pp.
 
95287
Paustian D., (ed.), 1995: Möglichkeiten des Naturschutzes im urbanen Raum. 80 pp. Faun.-Ökol. Mitt. Suppl. 19
 
8485
Pautner N., et al., 2001: Der Grosse Welt Atlas. 248 pp. Format 24x30 cm.
 
7137
Pavlovskij E. N., (ed.), 1949: Vrednye zhivotnye Srednej Azii. Spravotshnik. 404 pp.
 
MUZ 55
Pavlovskij E. N., 1953: Osnovnye zadatshi entomologitsheskoj nauki a svjazi s reshenijami sentjabrskogo plenuma CK KPSS. 14 pp. (in Russian). Entomologitsheskoe obozrenie 33: 3-16.
 
AZC 2521
Pawlowski J., 1981: Index of new taxa described in volumes I–XXV of the Acta zoologica cracoviensia (1956-1981). 22 pp. [95144] Acta zoologica cracoviensia 25/21: 545-566.
 
MUZ 68
Pearsall W. H., Ullyott P., 1933: Measurement of light for biological purposes. 2 pp. (in English). Nature 131: 694-695.
 
NBE 11121
Peez A., 1962: Über Käferfang mittels Köderkörben auf Bäumen. 3 pp. [MUZ52] [MUZ 37] Nachrichtenblatt der Bayerischen Entomologen 11(12): 121-123.
 
KLA 31161
Pelikán J., 1995: Professor Dr. Ing. Dalibor Povolný, DrSc., 70 years old. 16 pp. [M54] Klapalekiana 31(3-4): 161-176.
 
95526
Penck A., 1912: Das Museum und Institut für Meereskunde in Berlin. 21 pp. (in German).
 
HNR 78
Perkins R. C. L., 1936: Twenty-five years of insect-collecting in Devon. 8 pp.
 
8151
Pershina A. I., Tsyganko V. S., Borintseva H. A., 1976: Biogeograficheskoe rayonirovanie evropejskogo severa SSSR. Devonskij period. 10 maps, 100 pp.
 
MHB 39
Persohn M., Malten A., Wolf-Schwenninger K., 2006: Seltenheiten-Ausschuss der GAC – 1. Bericht. 6 pp. (in German). Angewandte Carabidologie 7: 55-60.
 
AGR 55
Petal J., 1983: The effect of mineral fertilization on biocoenotic structure and matter economy on meadows. 17 pp.