Napier, R. W., & Gershenfeld, M. K. (1999). Groups, theory and experience (6th ed.). Houghton Mifflin.
Chicago Style aipamenaNapier, Rodney W., and Matti K. Gershenfeld. Groups, Theory and Experience. 6th ed. Boston: Houghton Mifflin, 1999.
MLA aipamenaNapier, Rodney W., and Matti K. Gershenfeld. Groups, Theory and Experience. 6th ed. Houghton Mifflin, 1999.
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