000 00249nam a2200109Ia 4500
008 220201s1948 xx 000 0 eng d
100 _aBLACK P H
245 0 _aMACHINE DESIGN
260 _aNEW YORK
_bMCGRAW HILL
_c1948
300 _a469
942 _2ddc
999 _c88937
_d88937