Manual de fertilizantes 
/por National Plant Food Institute 
 - [2 ed.] 
 - México, D. F. :  UTHEA,  2000. 
 - 291 p. :  ilus. 
<br/><br/><label>ISBN: </label>9681803108 
<br/><br/><label>LCCN: </label>80774 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Fertilizantes.
<br/><br/><label>Dewey Class. No.: </label>631.8  / N3Y 2000