Gaya APA

Napier, R, W., Gershenfeld, M, K. (1981). Groups Theory and Experience; Second Edition . Boston: Houghton Mifflin Company.

Gaya MLA

Napier, Rodnay, W.., Gershenfeld, Matti, K.. "Groups Theory and Experience; Second Edition". Boston: Houghton Mifflin Company, 1981. Text.