APA (7th ed.) Citation

Nelsen, O. E. (1953). Comparative embryology of the vertebrates: With 2057 drawings and photos. McGraw-Hill.

Chicago Style (17th ed.) Citation

Nelsen, Olin Everett. Comparative Embryology of the Vertebrates: With 2057 Drawings and Photos. New York: McGraw-Hill, 1953.

MLA (9th ed.) Citation

Nelsen, Olin Everett. Comparative Embryology of the Vertebrates: With 2057 Drawings and Photos. McGraw-Hill, 1953.