APA استشهاد

Scott Simon Fehr. (2017). 101 interventions in group therapy (2nd.). Routledge.

استشهاد بنمط شيكاغو

Scott Simon Fehr. 101 Interventions in Group Therapy. 2nd. New York: Routledge, 2017.

MLA استشهاد

Scott Simon Fehr. 101 Interventions in Group Therapy. 2nd. Routledge, 2017.