Napier, Rodney W. Groups : theory and experience / Rodney W. Napier, Matti K. Gershenfeld. - 5th ed. - Boston : Houghton Mifflin, c1993. - xviii, 619p. ; 24 cm. ISBN: 0395638690 Subjects--Topical Terms: Group relations trainingSmall groups LC Class. No.: HM133 / N16 1993