TY  - BOOK
AU  - Troeh,Fredrick R.
AU  - Donahue,Roy L.
TI  - Soil and water conservation
AV  - S623 .T76
PY  - 1980///
CY  - New Jersey
PB  - Prentice-Hall
KW  - Soil conservation
KW  - Water conservation
ER  -