APA (7th ed.) Citation

Guyer, M. F. (1937). Animal biology (Rev. ed.). Harper & brothers.

Chicago Style (17th ed.) Citation

Guyer, Michael F. Animal Biology. Rev. ed. New York, London: Harper & brothers, 1937.

MLA (9th ed.) Citation

Guyer, Michael F. Animal Biology. Rev. ed. Harper & brothers, 1937.