Azzi, G.  <br/><br/>
Agricultural ecology  (Book) 

 - Fair Lawn, N.J.  Essential Books  1956 
 - 424 p.  23 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Crop yields
<br/><br/><label>Universal Decimal Class. No.: </label>631.95 AZZ  / 3974