Gage, N. L. 1917- Educational psychology / N.L. Gage, David C. Berliner. - 5th ed. - Boston : Houghton Mifflin, c1992. - xx, 667, [79] p. : ill. ; 24 cm. ISBN: 0395545560 LCCN: 91071992 LC Class. No.: LB1051 .G34 1991 / .G185 1991 Dewey Class. No.: 370.15