TY  - BOOK
AU  - Goodyear Aerosface Corporation.
TI  - Balloon logging systems
T2  - Contract 19-25
U1  - 634.982 
PY  - 1964///
CY  - Portland, Ore
PB  - Pacific Northwest Forest and Ranger Exp. Sta.
KW  - Bosques
KW  - Extracción
KW  - Madera
KW  - Transporte
N1  - Contenido: v.1 Analytical study.- v.2 Logistics study
ER  -