000 00355nam a2200121Ia 4500
008 190711s9999 xx 000 0 und d
082 _a622.33 C652
100 _aCOAL CONFERENCE AND EXPOV
245 0 _aSYMPOSIUM ON COAL PREPATION AND UTILISATION, COAL CONFERENCE AND EXPOV
260 _aNEW YORK
_bMcGraw-Hill
_c1979
300 _a25X17
942 _cBK
_2DDC
999 _c19696
_d19696