Popov G <br/><br/>
Working of mineral desposits 
Popov G 
 -  1971 
 - p.  cm. 
<br/><br/><label>Standard No.: </label>45987 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Subjects--Topical Terms: </label><br/> Mineralogy<br/>Geology
<br/><br/><label>Dewey Class. No.: </label>H1:15, L1