000 00297nam a2200121Ia 4500
008 220201s1992 xx 000 0 eng d
082 _a540
_bUPP
100 _aUppal, M M
245 0 _aText book of engineering chimestry
260 _aDelhi- 6
_bKhananties
_c1992
300 _a580+80
942 _2ddc
999 _c26249
_d26249