Wellmer, Friedrich-Wilhelm <br/><br/>
Economic evaluations in exploration 

 - New York:  Spring-Verlag  1986 
 - xiii,148p. : ill. 
<br/><br/><label>ISBN: </label>0387509240 
<br/><br/><label>Subjects--Topical Terms: </label><br/>MINERAL INDUSTRIES--ACCOUNTING
<br/><br/><label>LC Class. No.: </label>TN 260 Wel