Youngs, F. O. <br/><br/>
Soils survey of the Gila Bend area, Arizona 

 - Washington :  Bureau of Chemistry and Soils,  1928 
 - 22 p.  : ilus. ; mapa 
<br/><br/><label>LCCN: </label>62713 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Suelos--Arizona.