Cita APA (7a ed.)

Jenks,William F. (1956). Handbook of South American geology: An explanation of the geologica map of S.America. Geological Society of America.

Cita Chicago Style (17a ed.)

Jenks,William F. Handbook of South American Geology: An Explanation of the Geologica Map of S.America. New York - EEUU: Geological Society of America, 1956.

Cita MLA (8a ed.)

Jenks,William F. Handbook of South American Geology: An Explanation of the Geologica Map of S.America. Geological Society of America, 1956.