000 00279nam a2200121Ia 4500
008 220201s1980 xx 000 0 eng d
082 _a621.815
_bGUP
100 _aGupta, RB
245 0 _aTb of machine drawing
260 _bSatya Prakashan
_c1980
300 _a838
942 _2ddc
999 _c81733
_d81733