Citazione Stile APA (7a Edizione)

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

Citazione stile Chigago Style (17a edizione)

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

Citatione MLA (9a ed.)

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