000 00257nam a2200109Ia 4500
008 240421s9999 xx 000 0 und d
100 _aSharma, T.R .
245 0 _aModern Teaching Aids
260 _aAgra
_bH.P.Bhargava
_c2009
300 _a155p.
942 _cBK
999 _c12637
_d12637