Chironis, Nicholas P. <br/><br/>
Coal age second operating handbook of underground mining / 
Nicholas P. Chironis 
 - New York :  McGraw-Hill,  1980 
<br/><br/><label>ISBN: </label>070114617 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Underground mining
<br/><br/><label>Dewey Class. No.: </label>665.722  / CHI