Dangos 1 - 4 canlyniadau o 4 ar gyfer chwilio 'National Research Council (U.S.). Highway Research Board. Committee on Culverts and Culvert Pipe', amser ymholiad: 0.01e Mireinio'r Canlyniadau
  1. 1

    Pipes and culverts 5 reports.

    Cyhoeddwyd 1969
    Llyfr

    Pipes and culverts 5 reports.
  2. 2

    Retaining walls and culverts 5 reports.

    Cyhoeddwyd 1968
    Llyfr

    Retaining walls and culverts 5 reports.
  3. 3

    Pipes, drainage structures, and cylinder pile retaining wall 7 reports : presented at the 43rd Annual Meeting, January 13-17, 1964.

    Cyhoeddwyd 1964
    Llyfr

    Pipes, drainage structures, and cylinder pile retaining wall 7 reports : presented at the 43rd Annual Meeting, January 13-17, 1964.
  4. 4

    Culverts and slope protection 4 reports ; prepared at the 42nd Annual Meeting, January 7-11, 1963.

    Cyhoeddwyd 1963
    Llyfr

    Culverts and slope protection 4 reports ; prepared at the 42nd Annual Meeting, January 7-11, 1963.

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