000 00270nam a2200121Ia 4500
008 220201s1961 xx 000 0 eng d
082 _a671.3
100 _aPearson, Claude E
245 0 _aExtrusion of metals
260 _bChapman
_c1961
300 _a336
942 _2ddc
999 _c78317
_d78317