Cita APA (7th ed.)

Welty, J. C. (1988). The Life of Birds (4th ed.). W. B. Saunders.

Cita Chicago (17th ed.)

Welty, Joel Carl. The Life of Birds. 4th ed. New York: W. B. Saunders, 1988.

Cita MLA (9th ed.)

Welty, Joel Carl. The Life of Birds. 4th ed. W. B. Saunders, 1988.