APA-viite (7. p.)

Hornaday, W. T. (1909). Popular official guide to the New York zoological park (10th ed.). New York Zoological Society.

Chicago-viite (17. p.)

Hornaday, William T. Popular Official Guide to the New York Zoological Park. 10th ed. New York: New York Zoological Society, 1909.

MLA-viite (9. p.)

Hornaday, William T. Popular Official Guide to the New York Zoological Park. 10th ed. New York Zoological Society, 1909.