Thomas, George Isaiah. Individualizing instruction in the elementary school [by] George I. Thomas and Joseph Crescimbeni. - New York Random House [1967] - xiv, 428 p. illus. cm. 920901 Bibliography: p. [409]-416. LCCN: 67012363 Subjects--Topical Terms: Individualized instructionEducation , Elementary--Curricula. LC Class. No.: LB1031 / .T55 Dewey Class. No.: 372.1/2/54