Symposium on fertilizer use    (Book) 

 - New Delhi  Indian Society of Soil Science  1970 
 - 273p.  23 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Fertilizers--Congresses
<br/><br/><label>Universal Decimal Class. No.: </label>631.8 SYM  / 7949