000 00302nam a2200121Ia 4500
008 220201s1949 xx 000 0 eng d
100 _aKehl, GL
245 0 _aPrinciples of metallographic laboratory practice
250 _a3rd
260 _bNew York: McGraw Hill
_c1949
300 _a520
942 _2ddc
999 _c80734
_d80734