Diesel powered equipment in underground mining :  proceedings of the symposium on the use of diesel-powered equipment in underground mining, Pittsburgh, Pa., January 30-31, 1973 / 
compiled by Bruce F. Grant and Dorothy F. Friedman. 
 - Washington :  U.S. Dept. of the Interior, Bureau of Mines,  [1975]. 
 - 366 p. :  ill. 
 - Information circular (United States. Bureau of Mines) ;  8666 .
<br/><br/><label>LCCN: </label>92015006 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Coal mines and mining--Equipment and supplies.<br/>Coal mining machinery.
<br/><br/><label>Dewey Class. No.: </label>622.06173