APA (7th ed.) Citation

Shull, F. (1920). Principles of animal biology. McGraw-Hill Book Co., Inc.

Chicago Style (17th ed.) Citation

Shull, Franklin. Principles of Animal Biology. New York: McGraw-Hill Book Co., Inc, 1920.

MLA (9th ed.) Citation

Shull, Franklin. Principles of Animal Biology. McGraw-Hill Book Co., Inc, 1920.