Frost, Robert E. <br/><br/>
Airphoto patterns of soils of the western United States / 
by Robert E. Frost and K.B. Woods. 
 - Washington :  Govt. print. off.,  1948. 
 - vii, 76 p. :  ill. ;  26 cm. 
 - U. S. Civil Aeronautics Administration. Technical development report ;  no. 85 .
<br/><br/><label>LCCN: </label>50060146  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Soils--West (U.S.)<br/>Physical geography--West (U.S.)<br/>Aerial photography.
<br/><br/><label>LC Class. No.: </label>TL521  / .A374 no. 85 
<br/><br/><label>Dewey Class. No.: </label>0