000 00280nam a2200121Ia 4500
008 220201s1992 xx 000 0 eng d
100 _aParanthmam, D
245 0 _aQuality control
250 _a4
260 _bNew Delhi : Tata Mc Graw hill
_c1992
300 _a198
942 _2ddc
999 _c85016
_d85016