Andre, George Guillaume, <br/><br/>
A practical treatise on coal mining / 
by George G. André 
 - 2v, 84 hojas de lams 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ingeniería de minas<br/>Minas de carbón
<br/><br/><label>LC Class. No.: </label>TN802  / A53