Chironis, Nicholas P., <br/><br/>
Coal age second operating handbook of undergraund mining / 
Edited by Nicholas p. chironis 
 - 423 páginas 
<br/><br/><label>ISBN: </label>070114617 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Minas de carbón--Manuales
<br/><br/><label>LC Class. No.: </label>TN802.H8  / C44