APA (7th ed.) Zitazioa

Krombein, K. V. (1969). Life history notes on some egyptian solitary wasps and bees and their associates, Hymenoptera: Aculeata. Smithsonian Institution.

Chicago Style (17th ed.) Zitazioa

Krombein, Karl V. Life History Notes on Some Egyptian Solitary Wasps and Bees and Their Associates, Hymenoptera: Aculeata. Washington, D.C, USA: Smithsonian Institution, 1969.

MLA (9th ed.) Zitazioa

Krombein, Karl V. Life History Notes on Some Egyptian Solitary Wasps and Bees and Their Associates, Hymenoptera: Aculeata. Smithsonian Institution, 1969.