000 00296nam a2200121Ia 4500
008 220120s9999||||xx |||||||||||||| ||und||
082 _a620.11
100 _aGupta, R.K
_911693
245 0 _aMaterial science
260 _aSahithya bandara
_bNew Delhi
_c2000
300 _b0
650 _aMATHEMATICS
999 _c136897
_d136897