Emerson, Frederick V. <br/><br/>
Agricultural geology 

 - New York :  Wiley,  1920 
 - 319 p.  : ilus. 
<br/><br/><label>LCCN: </label>33522 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geología.<br/>Rocas.<br/>Suelos.
<br/><br/><label>Dewey Class. No.: </label>630.25  / E54