Ferster, C. B., & Culbertson, S. (1982). Behavior principles (3rd ed.). Prentice-Hall.
Chicago Style aipamenaFerster, Charles B., and Stuart Culbertson. Behavior Principles. 3rd ed. Englewood Cliffs, N.J: Prentice-Hall, 1982.
MLA aipamenaFerster, Charles B., and Stuart Culbertson. Behavior Principles. 3rd ed. Prentice-Hall, 1982.
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