APA (7th ed.) Citation

Sue, D., Sue, D. W., & Sue, S. (1986). Understanding abnormal behavior Understanding abnormal behavior.

Chicago Style (17th ed.) Citation

Sue, David, Derald Wing Sue, and Stanley Sue. "Understanding Abnormal Behavior." Understanding Abnormal Behavior 1986.

MLA (9th ed.) Citation

Sue, David, et al. "Understanding Abnormal Behavior." Understanding Abnormal Behavior, 1986.