Wells, Frederick J. <br/><br/>
The long-run availability of phosphorus :  a case study in mineral resource analysis / 
Frederick J. Wells 
 - Baltimore, Md. :  Published for Resources for the Future by the Johns Hopkins University Press,  c1975 
 - xxi, 121 p. ;  24 cm. 
<br/><br/>Includes bibliographical references and index 
<br/><br/><label>ISBN: </label>0801816564 :  USD 9.50 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Phosphates<br/>Phosphorus
<br/><br/><label>Dewey Class. No.: </label>333.8