APA

Hagen V. W. v., Jaques F. L., . (1946). South American zoo. New York: Julian Messner.

Chicago

Hagen Victor W von, Jaques Francis Lee, . 1946. South American zoo. New York: Julian Messner.

Harvard

Hagen V. W. v., Jaques F. L., . (1946). South American zoo. New York: Julian Messner.

MLA

Hagen Victor W von, Jaques Francis Lee, . South American zoo. New York: Julian Messner. 1946.