Cita APA

(1970). Geographical field methods in tropical Latin America: April 15 - june 15, 1970. [Lugar de publicación no identificado]: Organization for Tropical Studies.

Citación estilo Chicago

Geographical Field Methods in Tropical Latin America: April 15 - June 15, 1970. [Lugar de publicación no identificado]: Organization for Tropical Studies, 1970.

Cita MLA

Geographical Field Methods in Tropical Latin America: April 15 - June 15, 1970. [Lugar de publicación no identificado]: Organization for Tropical Studies, 1970.