Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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.

Cita MLA (9th ed.)

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