000 00297nam a2200133Ia 4500
100 _aPiaget, Jean
020 _a7100 6358 x
942 _cBK
654 _a
245 _aChild 's conception of time
260 _aLondon
_bRoutledge & Kegan Paul
_c1969
082 _a155.4
300 _bHb
_axii,285
999 _c392031
_d392031
041 _aeng