TY  - BOOK
AU  - Rothwell, R. L.
TI  - Watershed management guidelines for logging and road construction
T2  - Information report A-X-42
U1  - 634.93 
PY  - 1971///
CY  - (Ottawa)
PB  - Department of Disheries and Forestry
KW  - Bosques
KW  - Extracción
KW  - Caminos forestales
ER  -