000 00294nam a2200121Ia 4500
100 _aSharma, Motilal
942 _cBK
654 _a
245 _aSystem approach
_bits Applications in Education
260 _aNew Delhi
_bHimalaya Publishing House
_c1985
082 _a370.1
300 _axvi,552
999 _c373963
_d373963
041 _aeng