Underwood, B. J. (1966). Experimental psychology (Second edition.). Appleton-Century-Crofts, Educational Division, Meredith Corporation.
Cita Chicago (17th ed.)Underwood, Benton J. Experimental Psychology. Second edition. New York: Appleton-Century-Crofts, Educational Division, Meredith Corporation, 1966.
Cita MLA (9th ed.)Underwood, Benton J. Experimental Psychology. Second edition. Appleton-Century-Crofts, Educational Division, Meredith Corporation, 1966.
Atenció: Aquestes cites poden no estar 100% correctes.