Cita APA (7th ed.)

Hurd, P. D., & Linsley, E. G. (1972). Parasitic bees of the genus Holcopasites Ashmead, Hymenoptera: Apoidea. Smithsonian Institution.

Cita Chicago (17th ed.)

Hurd, Paul D., i E. Gorton Linsley. Parasitic Bees of the Genus Holcopasites Ashmead, Hymenoptera: Apoidea. Washington, D.C, USA: Smithsonian Institution, 1972.

Cita MLA (9th ed.)

Hurd, Paul D., i E. Gorton Linsley. Parasitic Bees of the Genus Holcopasites Ashmead, Hymenoptera: Apoidea. Smithsonian Institution, 1972.