Service, Alfred L. <br/><br/>
An evaluation of the western phosphate industry and its resources (in five parts) 5. Trends and outlook  
Service, Alfred L. 
 - Washington  Bureau of mines  1967 
 - Report Investigation  6935 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>industria<br/>tendencia<br/>recursos<br/>fosfato
<br/><br/><label>Universal Decimal Class. No.: </label>661.63 (47)