Martin, E. <br/><br/>
Characterization of residues from selected coal conversion processes / 
by E. Martin and G.V. Sullivan. 
 - [Washington, D.C.] :  Bureau of Mines, U.S. Dept. of the Interior,  [1980]. 
 - 13 p. : ill. 
 - Report of investigations ; 8501 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Soil liquefaction--By-products.<br/>Coal gasification--By-products.