Bear, Firman E. <br/><br/>
Soils and fertilizer 

 - 3 ed. 
 - New York :  Wiley,  1942 
 - 374 p.  : ilus. 
<br/><br/><label>LCCN: </label>13419 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Abonos.<br/>Fertilizantes.<br/>Suelos.
<br/><br/><label>Dewey Class. No.: </label>631.4  / B43