TY  - GEN
ED  - U.S. Environmental Proctection Agency.
TI  - Comparative costs of erosion and sediment control, construction activites
U1  - 551.302 
PY  - 1973///
CY  - Washington
PB  - W
KW  - EROSION
KW  - SUELOS
KW  - SEDIMENTACION
KW  - DRENAJE
ER  -