Cita APA (7a ed.)

Campbell, J. R., & Lasley, J. F. (1975). The Science of animals that serve mankind (2nd edition.). McGraw-Hill.

Cita Chicago Style (17a ed.)

Campbell, John R., y John F. Lasley. The Science of Animals That Serve Mankind. 2nd edition. New York: McGraw-Hill, 1975.

Cita MLA (8a ed.)

Campbell, John R., y John F. Lasley. The Science of Animals That Serve Mankind. 2nd edition. McGraw-Hill, 1975.