Ahlgren, Gilbert H. <br/><br/>
Practical field crop production for the Northeast  an elementary introduction to agronomy 

 - New Jersey  Rutgers College  1947 
 - x,437p.  23cm 
<br/><br/><label>ISSN: </label>` 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agriculture<br/>Field and plantation crops
<br/><br/><label>Dewey Class. No.: </label>633.08  / PRA