Coal Age Operating Handbook of Underground Mining / 
Edt. by N.P. Chironis. 
 - New York :  McGraw-Hill, Inc.,  1977. 
 - vol. 
<br/><br/>Includes Index. 
<br/><br/> vol. 1 ( 1977, 410 p.)  vol. 2 ( 1978, 442 p.) 
<br/><br/><label>ISBN: </label>07-011457-9 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mining Engineering