Cita APA

Von Hagen, V. W. (1945). South America called them: Explorations of the great naturalists: La condamine, Humboldt, Darwin, Spruce. New York: A.A. Knopf.

Citación estilo Chicago

Von Hagen, Victor Wolfgang. South America Called Them: Explorations of the Great Naturalists: La Condamine, Humboldt, Darwin, Spruce. New York: A.A. Knopf, 1945.

Cita MLA

Von Hagen, Victor Wolfgang. South America Called Them: Explorations of the Great Naturalists: La Condamine, Humboldt, Darwin, Spruce. New York: A.A. Knopf, 1945.