Donahue, Roy Luther. <br/><br/>
Our soils and their management 

 - 4 ed. 
 - Denville, Ill. :  Interstate,  1976 
 - 794 p.  : ilus. 
<br/><br/><label>LCCN: </label>20641 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Suelos agrícolas.<br/>Suelos.
<br/><br/><label>Dewey Class. No.: </label>631.4  / D66 1976