APA (7th ed.) Citation

Krombein, K. V. (1981). Biosystematic studies Ceylonese Wasps, V111: A monograph of the Philanthidae (Hymenoptera : Sphecoidea). Smithsonian Institution Press.

Chicago Style (17th ed.) Citation

Krombein, Karl V. Biosystematic Studies Ceylonese Wasps, V111: A Monograph of the Philanthidae (Hymenoptera : Sphecoidea). Washington: Smithsonian Institution Press, 1981.

MLA (9th ed.) Citation

Krombein, Karl V. Biosystematic Studies Ceylonese Wasps, V111: A Monograph of the Philanthidae (Hymenoptera : Sphecoidea). Smithsonian Institution Press, 1981.

Warning: These citations may not always be 100% accurate.