189600 Bellack, A. S., & Hersen, M. (1977). Behavior modification: An introductory textbook. Baltimore : Williams and Wilkins.
Chicago Style (17th ed.) Citation189600 Bellack, Alan S., and Michel Hersen. Behavior Modification: An Introductory Textbook. Baltimore : Williams and Wilkins, 1977.
MLA (9th ed.) Citation189600 Bellack, Alan S., and Michel Hersen. Behavior Modification: An Introductory Textbook. Baltimore : Williams and Wilkins, 1977.
Warning: These citations may not always be 100% accurate.