APA-referens (7:e uppl.)

Campbell, J. R., & Lasley, J. F. (1985). The science of animals that serve humanity (3rd ed.). McGraw-Hill.

Chicago-referens (17:e uppl.)

Campbell, John R., och John Foster Lasley. The Science of Animals That Serve Humanity. 3rd ed. New York: McGraw-Hill, 1985.

MLA-referens (9:e uppl.)

Campbell, John R., och John Foster Lasley. The Science of Animals That Serve Humanity. 3rd ed. McGraw-Hill, 1985.