Hornaday, W. T. (1909). Popular official guide to the New York zoological park (10th ed.). New York Zoological Society.
Style de citation Chicago (17e éd.)Hornaday, William T. Popular Official Guide to the New York Zoological Park. 10th ed. New York: New York Zoological Society, 1909.
Style de citation MLA (9e éd.)Hornaday, William T. Popular Official Guide to the New York Zoological Park. 10th ed. New York Zoological Society, 1909.
Attention : ces citations peuvent ne pas être correctes à 100%.