Anderson, G.W.

Effectiveness and impact of the care/sierra leone rural penetration roads projects. - Washington-US : United States Agency for International Development, 1981. - páginas 62-63 : ilustraciones blanco y negro - Trimestral - Vol.9, no.2 (Jul. 1981) - A.I.D. research & development abstracts ; no.2 . - United States Agency for International Development. .

Artículo dentro de: Transportation. Sumarios de investigación.