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.
Lua i Stíl Chicago (17ú heag.)Powdermaker, Florence, agus 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.
Lua MLA (9ú heag.)Powdermaker, Florence, agus Jerome D. Frank. Group Psychotherapy: Studies in Methodology of Research and Therapy. Published for the Commonwealth Fund by the Harvard University Press, 1953.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.