000 00268nam a2200121Ia 4500
020 _a9788121901468
100 _aKhurmi, R.S
245 0 _aMaterial Science
260 _bS. Chand And Company
_aNew Delhi
_c2013
650 _aPhysics
700 _aSedha, R.S
942 _cBK
999 _c5455
_d5455