000 00303nam a22001217a 4500
082 _a153.4 AUL
100 _aAULT,Ruth L.
245 _aChildrens Cognitive Development /
_cRuth L.Ault
260 _aNew York
_bOxford University Press
_cc1977
300 _a193p;
500 _aIncludes index
942 _cBK01
999 _c4625
_d4625