APA (7th ed.) Citation

Welty, J. C., & Baptista, L. F. (1988). The life of birds (4th ed.). Saunders College.

Chicago Style (17th ed.) Citation

Welty, Joel Carl, and Luis Felipe Baptista. The Life of Birds. 4th ed. New York: Saunders College, 1988.

MLA (9th ed.) Citation

Welty, Joel Carl, and Luis Felipe Baptista. The Life of Birds. 4th ed. Saunders College, 1988.