APA (7th ed.) Citation

Romanoff, A. L., & Romanoff, A. J. (1949). The avian egg (4.print.). Wiley.

Chicago Style (17th ed.) Citation

Romanoff, Alexis Lawrence, and Anastasia J. Romanoff. The Avian Egg. 4.print. New York: Wiley, 1949.

MLA (9th ed.) Citation

Romanoff, Alexis Lawrence, and Anastasia J. Romanoff. The Avian Egg. 4.print. Wiley, 1949.