Fertilizer manual. 

 - New York :  UNIDO ,  1967 
 - xvii, 218p. :  ill. ;  28 cm.  
 - United Nations. Document .
<br/><br/>Includes bibliographical references . 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Fertilizers
<br/><br/><label>Dewey Class. No.: </label>631.8  / UNIDO-2