TY  - BOOK
AU  - Haith, Douglas A.
AU  - Loehr, Raymond C.
TI  - Effectiveness of soil and water conservation practices for pollution control
U1  - 631.45 
PY  - 1979///
CY  - Athens, Ga.
PB  - Environmental Protection Agency
KW  - Agricultura
KW  - Modelos matematicos
KW  - Agua
KW  - Conservacion
KW  - Contaminación
KW  - Suelos
KW  - Conservación
ER  -