Fertilizer manual 

 - The Netherlands :  Kluwer Academic Publishers :  United Nations ,  1998. 
 - 615 p. 
 - UNIDO .
<br/><br/>United Nations Industrial Development Organization International Fertilizer Development Center 
<br/><br/><label>ISBN: </label>0-7923-5011-1 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agriculture