APA (7th ed.) Citation

Patten, B. M., & Carlson, B. M. (1981). Patten's Foundations of embryology (4th ed.). McGraw-Hill.

Chicago Style (17th ed.) Citation

Patten, Bradley M., and Bruce M. Carlson. Patten's Foundations of Embryology. 4th ed. New York: McGraw-Hill, 1981.

MLA (9th ed.) Citation

Patten, Bradley M., and Bruce M. Carlson. Patten's Foundations of Embryology. 4th ed. McGraw-Hill, 1981.