00238nam a2200109Ia 4500100002700000654002100027245002100048260002300069082001600092300000800108546001200116  aKhurmi/R.S/ Sedha/R.S   amaterial science  aMaterial Science  bS.Chand & C0c2005  a620.11bKHU  a376  aENGLISH