Edwards, Allen Louis. Experimental design in psychological research / by Allen L. Edwards. - 3d ed. - New York ; New Delhi : Holt, Rinehart and Winston; Amerind publishing co.pvt.ltd., 1968,1972 - xix, 455 p. : illus. ; 24 cm. Bibliography: p. 360-365. and Index Subjects--Topical Terms: Psychology--Research.Experimental design. Dewey Class. No.: 150.182 / EDE 1968