Napier, R. W. (1999). Groups: Theory and experience (6th ed.). Boston: Houghton Mifflin.
Čikaški stil citiranjaNapier, Rodney W. Groups: Theory and Experience. 6th ed. Boston: Houghton Mifflin, 1999.
MLA način citiranjaNapier, Rodney W. Groups: Theory and Experience. 6th ed. Boston: Houghton Mifflin, 1999.
Upozorenje: Ovi citati možda nisu uvijek 100% točni.