000 00290nam a2200109Ia 4500
008 240421s9999 xx 000 0 und d
100 _aVaidya, Narendra
245 0 _aHow To Build -Up Conceptual Powers Of Students
260 _aNew Delhi
_bDeep & Deep
_c2008
300 _a177p.
942 _cBK
999 _c14550
_d14550