Agricultural by-products and wastes, a worldwide list of institution s.   

 - 1st ed. 
 - Rome :   FAO,   n.d 
 - v. :    ill. ;    29 cm. 
 - Agricultural serviecs bulletin ;   no.21. .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Fertilizers.--------<br/>Waste products as fertilizers.--------