Engle, D. E., & Arkowitz, H. (2006). Ambivalence in psychotherapy: Facilitating readiness to change. Guilford Press.
Čikaški stil citiranja (17. izdanje)Engle, David E., i Hal Arkowitz. Ambivalence in Psychotherapy: Facilitating Readiness to Change. New York: Guilford Press, 2006.
MLA način citiranja (9. izdanje)Engle, David E., i Hal Arkowitz. Ambivalence in Psychotherapy: Facilitating Readiness to Change. Guilford Press, 2006.
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