TY  - BOOK
AU  - Pierce, J. Kenneth.
ED  - E.U.A. Bureau of Land Mangement. Oregon State Office
TI  - Forest engineering hanbook ; a guide for logging planning forest road engineering
U1  - 634.982 
PY  - 0000///(s.a.)
CY  - (s.l.)
PB  - (s.e.)
KW  - Bosques
KW  - Extracción
KW  - Caminos forestales
KW  - Ingeniería forestal
ER  -