Napier, R. W. (1983). Making groups work: A guide for group leaders. Houghton Mifflin.
Čikaški stil citiranja (17. izdanje)Napier, Rodney W. Making Groups Work: A Guide for Group Leaders. Houghton Mifflin, 1983.
MLA način citiranja (9. izdanje)Napier, Rodney W. Making Groups Work: A Guide for Group Leaders. Houghton Mifflin, 1983.
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