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  1. 21
    Published 1986
    Book

    Continuing project to synthesize information on highway problems.
  2. 22
    Published 1985
    Book

    Continuing project to synthesize information on highway problems.
  3. 23
    Published 1984
    Book

    Research problem statements
  4. 24
    Published 1984
    Book

    Continuing project to synthesize information on highway problems.
  5. 25
    Published 1983
    Book

    Continuing project to synthesize information on highway problems a staff digest of the progress and status of NCHRP project 20-5 ... for which the Transportation Research Board is the agency conducting the research.
  6. 26
    Published 1983
    Book

    Continuing project to synthesize information on highway problems a staff digest of the progress and status of NCHRP project 20-5 ... for which the Transportation Research Board is the agency conducting the research.
  7. 27
    Published 1983
    Book

    Continuing project to synthesize information on highway problems.
  8. 28
    Published 1982
    Book

    Continuing project to synthesize information on highway problems.
  9. 29
    Published 1981
    Book

    Operation and maintenance of transportation facilities
  10. 30
    Published 1981
    Book

    Research problem statements
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