000 00286nam a2200121Ia 4500
100 _aHavigburst, Robert J.
942 _cBK
654 _a
245 _aHuman development and eduction
260 _aLongmans
_bLongmans Green & Company
_c1972
082 _a155.42
300 _bHb
_aix, 338
999 _c413018
_d413018
041 _aeng