TY  - BOOK
AU  - Stillings, Fred I.
AU  - Gerson, William M.
TI  - Report on an administrative study of skyline loging
PY  - 1966///
CY  - San Francisco
PB  - U.S. Forest Service. Division of Timber Management
KW  - Bosques
KW  - Extracción
KW  - E.U.A
ER  -