Franklin

MLA

Shull, A. Franklin, George R Larue, and Alexander Grant Ruthven. Principles of Animal Biology. 5th ed. New York and London: McGraw-Hill book company, inc., 1941.

APA

Shull, A. Franklin, Larue, G. R, & Ruthven, A. Grant. (1941). Principles of animal biology. 5th ed. New York and London: McGraw-Hill book company, inc.

Chicago

Shull, A. Franklin, George R Larue, and Alexander Grant Ruthven. Principles of Animal Biology. 5th ed. New York and London: McGraw-Hill book company, inc., 1941.