Proceedings 

 - Muscle Shoals, Ala :  Tennessee Valley Authority,  1974 
 - 95 p.  : gráfs. 
<br/><br/><label>LCCN: </label>58845 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Fertilizantes--Industria--E.U.A.