Staněk, V. J. (1962). Pictorial encyclopedia of the animal kingdom. Crown Publishers.
Cita Chicago (17th ed.)Staněk, V. J. Pictorial Encyclopedia of the Animal Kingdom. New York: Crown Publishers, 1962.
Cita MLA (9th ed.)Staněk, V. J. Pictorial Encyclopedia of the Animal Kingdom. Crown Publishers, 1962.
Atenció: Aquestes cites poden no estar 100% correctes.