Suggestions for prospecting. 

 - [Washington,  1967] 
 - 24 p.  illus.  24 cm. 
<br/><br/>Bibliography: p. 22-24. 
<br/><br/><label>LCCN: </label>gs 67000263 //r85 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Prospecting.
<br/><br/><label>LC Class. No.: </label>TN270  / .U5 
<br/><br/><label>Dewey Class. No.: </label>622/.1