00574 a2200205 4500 Eng 136.72 P571p Phillips, John L 21670 The origins of intellect Piaget's theory Sanfrancisco W.H. Freeman 1969 xviii, 149p. illus. Bibliography: p. 133-144 2068-1-7 Intellect 1235 Child study Educational implication 21671 Tecahing princeples 21672 Piaget, Jean, 1896 ddc GEN 60251 60239 0 0 ddc 0 0 TUCL TUCL 2011-04-20 1 1 136.72 P571p 53411 2018-05-14 00:00:00 2018-04-09 2011-04-20 GEN