Não informado. (1976). Group psychotherapy, psychodrama and sociometry. American Society of Group Psychotherapy and Psychodrama.
Chicago-referens (17:e uppl.)Não informado. Group Psychotherapy, Psychodrama and Sociometry. Beacon, NY: American Society of Group Psychotherapy and Psychodrama, 1976.
MLA-referens (8:e uppl.)Não informado. Group Psychotherapy, Psychodrama and Sociometry. American Society of Group Psychotherapy and Psychodrama, 1976.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.