APA aipamena

Von Hagen, V. W. (1946). South American Zoo. Lulian Messner.

Chicago Style aipamena

Von Hagen, Víctor W. South American Zoo. Lulian Messner, 1946.

MLA aipamena

Von Hagen, Víctor W. South American Zoo. Lulian Messner, 1946.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.