Ries, Heinrich,  1871-1951 <br/><br/>
Elements of engineering geology / 
By h. ries and Thomas l. watson. 
 - 2 
 - 469 páginas 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geología económica
<br/><br/><label>LC Class. No.: </label>TN260  / R43