Lester G. Massey,American Chemical Society,Division of Fuel Chemistry,Meeting of ACS.Coal gasification ; a symposium at the 165th Meeting of ACS., Dallas, Texas, 1973.[s. n.],1974.
A. H. Pelofsky.Coal conversion technology：problems and solutions, based on a symposium sponsored by the ACS Division of Industrial and Engineering Chemstry at the I&EC Winter symposium.,1979.
Coal conversion technology：problems and solutions, based on a symposium sponsored by the ACS Division of Industrial and Engineering Chemstry at the I&EC Winter symposium
