APA (7th ed.) Citation

Sick, H. (1993). Birds in Brazil: A natural history. Princeton University Press.

Chicago Style (17th ed.) Citation

Sick, Helmut. Birds in Brazil: A Natural History. Princeton, N.J.: Princeton University Press, 1993.

MLA (9th ed.) Citation

Sick, Helmut. Birds in Brazil: A Natural History. Princeton University Press, 1993.