Citazione APA

Burton, M., & Burton, R. (2000). The little brown: Encyclopedia of animals. Little, Brown and Company.

Stile di citazione Chicago

Burton, Maurice, e Robert Burton. The Little Brown: Encyclopedia of Animals. London: Little, Brown and Company, 2000.

Citazione MLA

Burton, Maurice, e Robert Burton. The Little Brown: Encyclopedia of Animals. Little, Brown and Company, 2000.