Martin, G., & Pear, J. (1999). Behavior modification: What it is and how to do it (6th ed.). Prentice-Hall.
Cita Chicago Style (17a ed.)Martin, Garry, y Joseph Pear. Behavior Modification: What It Is and How to Do It. 6th ed. Upper Saddle River, N. J: Prentice-Hall, 1999.
Cita MLA (9a ed.)Martin, Garry, y Joseph Pear. Behavior Modification: What It Is and How to Do It. 6th ed. Prentice-Hall, 1999.
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