Western fertilizer handbook 

 - 6 ed. 
 - Danville, Ill. :  Interstate,  1980 
 - 269 p.  : ilus. ; gráfs. 
<br/><br/><label>LCCN: </label>70789 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Fertilizantes.
<br/><br/><label>Dewey Class. No.: </label>631.8  / C3 1980