000 00285nam a2200121Ia 4500
008 220201s1961 xx 000 0 eng d
082 _a621.75
100 _aBower, CT
245 0 _aAids to machine shop practice
260 _bLondon: Odham Press
_c1961
300 _a192
942 _2ddc
999 _c73892
_d73892