Raatikainen M., 1962: Hymenoptera species occurring in stems of spring wheat and the damage caused by them to wheat crops in Finland. 9 pp. 

 Raesfeld F. von, 1931: Das deutsche Weidwerk. Ein Lehr- und Handbuch der Jagd. Illustriert von Karl Wagner mit 310 Textabbildungen und 18 zum Teil mehrfarbigen Tafeln. 707 pp.  Discount 50%!

 Rafes P. M., 1956: Insects- pests of Elaeagnus calligonum, and Tamarix, growing on the Naryn sands (semidesert toward the East of the Volga). 13 pp. (in Russian). Entomologitsheskoe obozrenie 35(4): 805-817.

 Rahman M. T., Khalequzzaman M., Rahman Khan M. A., 2004: Assessment of infestation and yield loss stem borers on variety of rice. 7 pp. [AGR 93]  Journal of Asia-Pacific Entomology 7(1): 89-95.

 Rappard I. F. W., Karstel H. R., 1960: Eiwitbehoefte, jacht en inzameling. 3 pp. (in Dutch). Overdruk van Ned. Nieuw-Guinea 5: 2-4.

 Ratzeburg J. T. C., 1876: Die Waldverderber und ihre Feinde. Ein Handbuch für Forstmänner, Landwirthe, Gärtner und alle mit Waldbäumen Beschäftigte. Siebente Auflage in vollständig neuer Bearbeitung herausgegeben von Dr. J. F. Judeich... 525 pp. Hard cover, MORE USED book but pages complete and clear.   Discount 30%!

 Reese D., 2002: On the incised cattle scapulae from the East Mediterranean and Near East. 16 pp. Bonner zoologische Beiträge 50(3): 183-198.

 Ribbands R., 1955: Autumn Feeding. 2 pp. (in English). American Bee Journal 95(9): 350-351.

 Richards A. M., Filewood L. W., 1988: The effect of agricultural crops and weeds on thebionomics of the pest species compising the Epilachna vigintioctopunctata complex (Col., Coccinellidae). 16 pp. 

 Rivnay E., 1970: Temperature dependence of Spodoptera littoralis (Boisd.) populations in Israel. 22 pp. Israel Journal Ent. 5: 103-124.

 Rivnay E., 1971: Problems in pest management in Israel. 3 pp. Israel Journal Ent. 6(2): 191-193.

 Romero M. V.,Takahashi K., 2001: Investigation of stored-product insect pests and their natural enemies in Okinawa-jima and Ishigaki-jima Islands, Okinawa, Japan. 8 pp. (in Japenese). Japanese Journal of Entomology (N. S.) 4(3): 91-97.

 Roosmalen M. G. M. van, Garcia O. M. C. G., 2000: Fruits of the Amazonia forest. Part II: Sapotaceae. 104 pp. Acta Amazonica 30(2): 187-290.

 Rose A. H., Lindquist O. H., 1973: Insects of eastern pines. 127 pp. 

 Rosen D., Harpaz I., Samish M., 1971: Two species of Saissetia (Homoptera: Coccidae) injurious to olive in Israel and their natural emenies. 19 pp. Israel Journal Ent. 6(1): 35-53.

 Rosenberg D. M., 1975: Food chain concentration of chlorinated hydrocarbon pesticides in invertebrate communities: A re-evaluation. 14 pp. Quaestiones Entomologicae 11(1): 97-110.

 Roy S., Mukhopadhyay A., Gurusubramanian G., 2011: Resistance to insecticides in field-collected populations of tea mosquito bug (Helopeltis theivora Waterhouse) from the Dooars (North Bengal, India) tea cultivations. 8 pp. Journal of the Entomological Research Society 13(2): 37-44.

 Rubtsov I. A., 1954: Vrediteli citrusovych i ich estestvennye vragi. 260 pp.  Discount 20%!

 Rubtsova L. E., 2005: Experimental infection of two species of beetles (Coleoptera: Chrysomelidae; Buprestidae) by entomopathogenic nematode Steinernema carpocapsae (Weiser, 1955) (Rhabditida: Steinernematidae). 5 pp. (in Russian). Caucasian entomological bulletin 1(2): 113-117.

 Rumyantsev P. D., 1959: Biologiya vreditelej chlebnych zapasov. 293 pp.  Discount 20%!

 Rust M. K., Reierson D. A., 1988: Performance of insecticides for control of cat fleas (Siphonaptera: Pulicidae) indoors. 5 pp. 

 Ruszkowska I., Leski R., 1971: Achievements of agricultural entomology. 26 pp. [70244] Polskie Pismo Entomologiczne 41(4): 775-802.

 Ruszkowski A., 1959: Niektóre perspektywy kierunkowe rozwoju ochrony roslin przed szkodnikami (artykul dyskusyjny). 5 pp. 

 Rygg T. D., Braekke H. P., 1980: Swede midge (Contarinia naturtii Kieffer) (Diptera, Cecidomyiade). Investigations on biology, symptoms of attack and effects on yield. 9 pp.