000			00301nam a2200121Ia 4500
008			160710s1967 xx 000 0 und d
082			_a517.6 THO
100			_aTHORNHILL ,R.B
245			_aENGINEERING GRAPHIC AND NUMERICAL CONTROL
260			_bMC GRAW HILL _c1967
300			_a349
942			_2ddc _cB
999			_c36999 _d36999