International road federation 1983 world survey of current research & development on roads & road transport/

Geahča maid

• 1984 world survey of current research and development on roads and road transport
  Dahkki: 7380 International Road Federation
  Almmustuhtton: (1984)
• 1982 World survey of current research and development on roads and road transport
  Almmustuhtton: (1982)
• 1987 world survey of current research and development in roads and road transport : a report covering an inventory of 51 countries /
  Dahkki: International Road Federation, et al.
  Almmustuhtton: (1987)
• Road research, 1964
  Dahkki: Great Britain. Ministry of Transport
  Almmustuhtton: (1966)
• Report of the road research board : with the report of the director of road research for the year 1949/
  Dahkki: Great Britain. Department of Scientific and Industrial Research
  Almmustuhtton: (1951)