APA (7th ed.) Citation

Ullmann, L. P., & Krasner, L. (1975). A psychological approach to abnormal behavior (2. ed.). Prentice-Hall.

Chicago Style (17th ed.) Citation

Ullmann, Leonard P., and Leonard Krasner. A Psychological Approach to Abnormal Behavior. 2. ed. Englewood Cliffs [u.a.]: Prentice-Hall, 1975.

MLA (9th ed.) Citation

Ullmann, Leonard P., and Leonard Krasner. A Psychological Approach to Abnormal Behavior. 2. ed. Prentice-Hall, 1975.