APA (7th ed.) Citation

Nelsen, O. E. (1953). Comparative embryology of the vertebrates. McGraw-Hill.

Chicago Style (17th ed.) Citation

Nelsen, Olin E. Comparative Embryology of the Vertebrates. New York: McGraw-Hill, 1953.

MLA (9th ed.) Citation

Nelsen, Olin E. Comparative Embryology of the Vertebrates. McGraw-Hill, 1953.