Blast-Furnace processes for the production of phosphatic and potassic fertilizer materials  / 
by P. H. Royster -et. al.- 
 - Washington  :   EUA. Department of Agrriculture 
 - 75 p. 
 - Technical bulletin ; 543 .
<br/><br/> Enc. con impresos similares 
<br/><br/><label>LCCN: </label>206161 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Fertilizantes -- colecciones de escritos <br/>Fertilizantes -- potasio en<br/>Fertilizantes fosfatados 
<br/><br/><label>Dewey Class. No.: </label>PA-C 631.81 B86