Cita APA (7th ed.)
Ullmann, L. P., & Krasner, L. (1969). A psychological approach to abnormal behavior (ed.). Prentice-Hall.
Cita Chicago (17th ed.)
Ullmann, Leonard P., i Leonard Krasner. A Psychological Approach to Abnormal Behavior. ed. Engle Cliffs, NJ: Prentice-Hall, 1969.
Cita MLA (9th ed.)
Ullmann, Leonard P., i Leonard Krasner. A Psychological Approach to Abnormal Behavior. ed. Prentice-Hall, 1969.
Atenció: Aquestes cites poden no estar 100% correctes.