Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

Ullmann, Leonard P., y Leonard Krasner. A Psychological Approach to Abnormal Behavior. 2nd ed. Englewood Cliffs, New Jersey: Prentice-Hall, 1975.

Cita MLA (9a ed.)

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