TY  - BOOK
AU  - Frevert,Richard K.
TI  - Soil and water conservation engineering
U1  - 631.45 
PY  - 1955///
CY  - New York
PB  - John Wiley
KW  - Soil conservation
KW  - Soil management
KW  - Water conservation
KW  - Agricultural conservation
N1  - Includes index
ER  -