The fertilizer industry, world food suppliee environment / 
UNEP, IFA. 
 - Paris :  UNEP,  1998. 
 - 66 p. 
<br/><br/><label>ISBN: </label>2-9506299-2-X 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agriculture
<br/><br/><label>Subjects--Index Terms: </label>the fertilizer producers and their products the international market