Ferster, C. B., Culbertson, S., & Boren, M. C. P. (1975). Behavior principles (2a. ed.). Prentice-Hall.
Chicago Style (17th ed.) ZitazioaFerster, Charles B., Stuart Culbertson, eta Mary Carol Perrott Boren. Behavior Principles. 2a. ed. Englewood Cliffs: Prentice-Hall, 1975.
MLA (9th ed.) ZitazioaFerster, Charles B., et al. Behavior Principles. 2a. ed. Prentice-Hall, 1975.
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