000 00562nam a2200205Ia 4500
001 004936
008 141222s9999 xx 000 0 und d
040 _aDB/INS
041 0 _aeng
084 _aR
084 _bWA754 U4a
245 1 0 _aAir Pollution Aspects of Emission Sources: Iron and Steel Mills A Bibliography with Abstracts
245 1 0 _cEnvironmental Protection Agency
260 _aNorth Carolina
260 _bEnvironmental Protection Agency
260 _c1972
300 _a84
650 1 _aContaminación del aire
650 2 _aBibliografías
999 _c14359
_d14359