A study of the cost-effectiveness of grading unpaved roads in developing countries/

פריטים דומים

• Road project appraisal for developing countries
  מאת: Dickey, John W., 1941-
  יצא לאור: (1984)
• Roads and resources : appropriate technology in road construction in developing countries /
  יצא לאור: (1980)
• Towards safer roads in developing countries : a guide for planners and engineers /
  יצא לאור: (1991)
• Highway investment in developing countries proceeding ofthe conference 'Criteria for planning highway investment in developing countries`,sponsored by the Commission of the European Communities and the Institution of Civil Engineers,organized by the Institution of Civil Engineers,held at the Cafe Royal Conference Centre,London 17-18 May, 1982
  יצא לאור: (1983)
• Low cost roads : design, construction and maintainence /
  יצא לאור: (1971)