APA (7th ed.) Zitazioa
Proctor, B. (2000). Group supervision: A guide to creative practice. SAGE Publications.
Chicago Style (17th ed.) Zitazioa
Proctor, Brigid. Group Supervision: A Guide to Creative Practice. London ; Thousand Oaks, Calif.: SAGE Publications, 2000.
MLA (9th ed.) Zitazioa
Proctor, Brigid. Group Supervision: A Guide to Creative Practice. SAGE Publications, 2000.
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