Dyfyniad APA

Ferster, C. B., Culbertson, S., & Boren, M. C. P. (1975). Behavior principles (2nd ed.). Pprentice-Hall.

Dyfyniad Arddull Chicago

Ferster, Charles B., Stuart Culbertson, and Mary Carol Perrott Boren. Behavior Principles. 2nd ed. Englewood Cliffs: Pprentice-Hall, 1975.

Dyfyniad MLA

Ferster, Charles B., et al. Behavior Principles. 2nd ed. Pprentice-Hall, 1975.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.