Cita APA

Wille, A., & Michener, C. D. (1970). Observations on the nests of Costa Rican Halictus with taxonomic notes on Neotropical species (Hymenoptera: Halictidae). Universidad de Costa Rica.

Citación estilo Chicago

Wille, Alvaro, y Carles D. Michener. Observations On the Nests of Costa Rican Halictus With Taxonomic Notes On Neotropical Species (Hymenoptera: Halictidae). Universidad de Costa Rica, 1970.

Cita MLA

Wille, Alvaro, y Carles D. Michener. Observations On the Nests of Costa Rican Halictus With Taxonomic Notes On Neotropical Species (Hymenoptera: Halictidae). Universidad de Costa Rica, 1970.