Worthen, Edmund L. <br/><br/>
Farm soils, their management and fertilization 

 - 4 ed. 
 - New York :  Wiley,  1948 
 - 510 p.  : ilus. 
<br/><br/><label>LCCN: </label>52775 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Fertilizantes y abonos.<br/>Suelos.
<br/><br/><label>Dewey Class. No.: </label>631.4  / W67