Harger, John <br/><br/>
Coal, and the prevention of explosions and fires in mines 

 - London  Andrew Reid &amp; Company  1913 
 - 183 p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>EXPLOSIONES<br/>MINAS DE CARBON<br/>SEGURIDAD MINERA
<br/><br/><label>Universal Decimal Class. No.: </label>A/622.8/H22