Maintenance of unpaved roads
By: Transportation Research Board, Commission on Sociotechnical Systems, National Research Council.
Contributors: United States. Agency for International Development.
Series: Transportation technology support for developing countries : Synthesis ;; 1
Publisher: National Academy of Sciences
Published: 1979
Place of publication: Washington
Language: eng
Number of pages: 42
Subjects: Roads -- Developing countries -- Maintenance and repair.
Notes: Bibliography: p. 41-42.
"Prepared under contract AID/OTR-C-1591, project 931-1116, U.S. Agency for International Development."