APA (7e ed.) Bronvermelding

Powdermaker, F., & Frank, J. D. (1953). Group psychotherapy: Studies in methodology of research and therapy. Published for the Commonwealth Fund by the Harvard University Press.

Chicago (17e ed.) Bronvermelding

Powdermaker, Florence, en Jerome D. Frank. Group Psychotherapy: Studies in Methodology of Research and Therapy. Cambridge, MA: Published for the Commonwealth Fund by the Harvard University Press, 1953.

MLA (9e ed.) Bronvermelding

Powdermaker, Florence, en Jerome D. Frank. Group Psychotherapy: Studies in Methodology of Research and Therapy. Published for the Commonwealth Fund by the Harvard University Press, 1953.