Citazione APA

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

Stile di citazione Chicago

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

Citazione MLA

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

Attenzione: Queste citazioni potrebbero non essere precise al 100%.