Cita APA (7th ed.)
Spiegler, M. D., & Guevremont, D. (1993). Contemporary behavior therapy (2nd ed.). Brooks.
Cita Chicago (17th ed.)
Spiegler, Michael D., i David Guevremont. Contemporary Behavior Therapy. 2nd ed. California: Brooks, 1993.
Cita MLA (9th ed.)
Spiegler, Michael D., i David Guevremont. Contemporary Behavior Therapy. 2nd ed. Brooks, 1993.
Atenció: Aquestes cites poden no estar 100% correctes.