Transition from extensive to intensive agriculture with fertilizers  : proceedings of the VIIth. Colloquium of the International Potash Institute in Israel 

 - Berne :  Instituto Internacional de la Potasa,  (1969) 
 - 282 p.  : ilus 
<br/><br/><label>LCCN: </label>25267 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Fertilizantes.
<br/><br/><label>Dewey Class. No.: </label>631.8  / I58 1969