000 00260nam a2200109Ia 4500
008 220201s1985 xx 000 0 eng d
082 _a621.815
_bGUP
100 _aGupta,RB
245 0 _aT.B of machines drawing
260 _bSatya prakasham
_c1985
942 _2ddc
999 _c83396
_d83396