000 00224nam a2200097Ia 4500
008 230401s9999 xx 000 0 eng d
100 _aBHARGAVA(A.K)
245 0 _aENGG MATERIALS
260 _bASHOK K.GHOSH
942 _2ddc
_cBTECH
999 _c6933
_d6933