Stefanko, Robert. <br/><br/>
Coal mining technology :  theory and practice / 
by Robert Stefanko ; editor Christopher J. Bise. 
 - New York :  Society of Mining Engineers of the American Institute of Mining, Metallurgical, and Petroleum Engineers,  1983. 
 - xiv, 410 p . :  ill. 
<br/><br/><label>ISBN: </label>0895204045 
<br/><br/><label>LCCN: </label>91024045     
<br/><br/><label>Subjects--Topical Terms: </label><br/>Coal mines and mining.<br/>Mining engineering.