Calabrese, E. J. (1983). Principles of animal extrapolation. Wiley.
Cita Chicago (17th ed.)Calabrese, Edward J. Principles of Animal Extrapolation. New York: Wiley, 1983.
Cita MLA (9th ed.)Calabrese, Edward J. Principles of Animal Extrapolation. Wiley, 1983.
Atenció: Aquestes cites poden no estar 100% correctes.