Não informado. (1978). Journal for Specialists in Group Work. Association for Specialists in Group Work.
Chicago-referens (17:e uppl.)Não informado. Journal for Specialists in Group Work. Thousand Oaks, Calif: Association for Specialists in Group Work, 1978.
MLA-referens (8:e uppl.)Não informado. Journal for Specialists in Group Work. Association for Specialists in Group Work, 1978.
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