000 00297nam a2200121Ia 4500
008 211209s1974 xx 000 0 und d
041 _aeng
082 _a669.1422 N74 TRU/OIK
100 _aTRUBIN K G
245 _aSTEEL MAKING: OPEN HEARTH AND COMBINED PROCESS
260 _c1974
300 _a584
999 _c15199
_d15199