00743cam a2200241 4500 46911 46911 000000537461 AU-EpEBC 20170317095603.0 890428s1971 us b u001 eng 73151157 0679301631 NEMB 155.413 Wadsworth, Barry J. Piaget's theory of cognitive development : an introduction for students of psychology and education / by Barry J. Wadsworth New York : McKay, 1971 xiii, 140 p. : ill. ; 21 cm. Also published New York: Longman Bibliography: p. 135-138 Piaget, Jean, 1896-1980. Cognition in children ddc AM 0 0 ddc 0 0 Psychology MAIN MAIN OPEN 2017-03-17 Tabor 0 155.413 WAD 17492 2017-03-17 00:00:00 1 2017-03-17 AM