APA (7th ed.) Citation

Wessells, N. K. (1968). Vertebrate adaptations. W. H. Freeman.

Chicago Style (17th ed.) Citation

Wessells, Norman K. Vertebrate Adaptations. San Francisco: W. H. Freeman, 1968.

MLA (9th ed.) Citation

Wessells, Norman K. Vertebrate Adaptations. W. H. Freeman, 1968.

Warning: These citations may not always be 100% accurate.