APA (7th ed.) Citation

Wessells, N. K. (1974). Vertebrate structures and functions. W. H. Freeman.

Chicago Style (17th ed.) Citation

Wessells, Norman K. Vertebrate Structures and Functions. San Francisco: W. H. Freeman, 1974.

MLA (9th ed.) Citation

Wessells, Norman K. Vertebrate Structures and Functions. W. H. Freeman, 1974.