APA (7th ed.) Citation

Bellack, A. S., & Hersen, M. (1977). Behavior modification: An introductory textbook. Williams & Wilkins.

Chicago Style (17th ed.) Citation

Bellack, Alan S., and Michel Hersen. Behavior Modification: An Introductory Textbook. Baltimore: Williams & Wilkins, 1977.

MLA (9th ed.) Citation

Bellack, Alan S., and Michel Hersen. Behavior Modification: An Introductory Textbook. Williams & Wilkins, 1977.

Warning: These citations may not always be 100% accurate.