TY  - SER
ED  - Devres, Inc.
TI  - Socio-economic and environmental impacts of low volume rural roads
T2  - A.I.D. research & development abstracts ; 
PY  - 1981///
CY  - Washington-US : 
PB  - United States Agency for International Development, 
N1  - Artículo dentro de: Transportation; Sumarios de investigación
ER  -