Gaya APA

Herink, R., Herink, P, R. (2015). The Psychotherapy Guidebook (2nd Edition). United States of America: International Psychotherapy Institute.

Gaya MLA

Herink, Richie., Herink, Paul, R.. "The Psychotherapy Guidebook". 2nd Edition United States of America: International Psychotherapy Institute, 2015. Text.