000 00275nam a2200121Ia 4500
008 220201s1989 xx 000 0 eng d
082 _a621.9
_bGUP
100 _aGupta, CP
245 0 _aWorkshop technology
260 _bSatya Prakashan
_c1989
300 _a318
942 _2ddc
999 _c84497
_d84497