000 00255nam a2200109Ia 4500
008 220201s1988 xx 000 0 eng d
100 _aGUPTA R B
245 0 _aENGINEERING DRAWING
260 _aDELHI
_bSATYA PRAKASHAN
_c1988
300 _a605
942 _2ddc
999 _c91091
_d91091