TY  - BOOK
AU  - Frost,Robert E.
AU  - Woods,K.B.
TI  - Airphoto patterns of soils of the western United States
T2  - U. S. Civil Aeronautics Administration. Technical development report
AV  - TL521 .A374 no. 85
U1  - 0 
PY  - 1948///
CY  - Washington
PB  - Govt. print. off.
KW  - Soils
KW  - West (U.S.)
KW  - Physical geography
KW  - Aerial photography
ER  -