00690cam a2200217   4500001001300000003000900013005001700022008004100039010001600080020001500096040000900111082001200120100002400132245013000156260002900286300003500315500003700350504002900387600003000416650002600446000000537461AU-EpEBC20170317095603.0890428s1971    us       b   u001   eng    a   73151157  a0679301631  cNEMB00a155.4131 aWadsworth, Barry J.10aPiaget's theory of cognitive development :ban introduction for students of psychology and education /cby Barry J. Wadsworth  aNew York :bMcKay,c1971  axiii, 140 p. :bill. ;c21 cm.  aAlso published New York: Longman  aBibliography: p. 135-13810aPiaget, Jean,d1896-1980. 0aCognition in children