Torthaí cuardaigh - "National Cooperative Highway Research Program."

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    Continuing project to synthesize information on highway problems.

    Foilsithe / Cruthaithe 1995
    LEABHAR
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    Continuing project to synthesize information on highway problems.

    Foilsithe / Cruthaithe 1990
    LEABHAR
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    Continuing project to synthesize information on highway problems.

    Foilsithe / Cruthaithe 1991
    LEABHAR
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    Continuing project to synthesize information on highway problems.

    Foilsithe / Cruthaithe 1993
    LEABHAR
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    Continuing project to synthesize information on highway problems.

    Foilsithe / Cruthaithe 1997
    LEABHAR
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    Continuing project to synthesize information on highway problems.

    Foilsithe / Cruthaithe 1987
    LEABHAR