TY  - BOOK
AU  - Ruhe,Robert V.
TI  - Landscape evolution and soil formation in southwestern Iowa
U1  - 631.47 
PY  - 1967///
CY  - Washington
PB  - U.S. Dept. of Agriculture
KW  - Soil formation
KW  - Iowa
KW  - Geomorphology
N1  - Bibliography: p. 225-231
ER  -