Pearl, Richard M. <br/><br/>
Hardbook for prospectors 

 - 5th ed. 
 - New York  McGraw-hill  1973 
 - 471p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mining engineering<br/>Prospecting
<br/><br/><label>Dewey Class. No.: </label>622.1  / PEA