TY  - GEN
AU  - Troeh,F.R.
TI  - Soil and water conservation for productivity and environmental protection
SN  - 0138221553
PY  - 1980///
CY  - Englewood Cliffs
PB  - Prentice- Hall Inc.
KW  - Soil Erosion
KW  - Soil and Water Conservation
ER  -