APA (7th ed.) Citation

Watts, D. (1971). Principles of biogeography. McGraw-Hill Book Company.

Chicago Style (17th ed.) Citation

Watts, David. Principles of Biogeography. New York [u.a.]: McGraw-Hill Book Company, 1971.

MLA (9th ed.) Citation

Watts, David. Principles of Biogeography. McGraw-Hill Book Company, 1971.