Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (8th ed.)

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