APA (7th ed.) Citation

Proctor, B. (2008). Group supervision: A guide to creative practice (2nd ed.). SAGE.

Chicago Style (17th ed.) Citation

Proctor, Brigid. Group Supervision: A Guide to Creative Practice. 2nd ed. Los Angeles, [Calif.] ; London: SAGE, 2008.

MLA (9th ed.) Citation

Proctor, Brigid. Group Supervision: A Guide to Creative Practice. 2nd ed. SAGE, 2008.