APA (7. basım) Alıntı

Von Hagen, W. (1936). Contributions to the biology of the Galapago of the Archipelago de Colon (Testudo sps).

Chicago Style (17. basım) Atıf

Von Hagen, Wolfgang. Contributions to the Biology of the Galapago of the Archipelago De Colon (Testudo Sps). 1936.

MLA (9th ed.) Atıf

Von Hagen, Wolfgang. Contributions to the Biology of the Galapago of the Archipelago De Colon (Testudo Sps). 1936.