Dangos 1 - 20 canlyniadau o 721 ar gyfer chwilio '', amser ymholiad: 0.13e Mireinio'r Canlyniadau
1
Washington, 1969

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2
Washington, 1957

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3
Washington, D.C. : [National Research Council] 1958

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4
Washington, D.C., 1958

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5
Washington, National Academy of Sciences-National Research Council, 1961

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6
Washington, D.C. : Highway Research Board, Division of Engineering, National Research Council, National Academy of Sciences--National Academy of Engineering, 1969

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7
Washington, 1971

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8
Washington, 1972

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9

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Cyfresol
10
Washington, 1960

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12
Washington : Highway Research Board, 1971

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13
Washington, Highway Research Board, Division of Engineering and Industrial Research, National Academy of Sciences-National Research Council, 1966

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14
Washington, National Academy of Sciences-National Research Council, 1961

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15
Washington, 1971

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16
gan Isada, Nelson Mijares, 1923-
[Washington] Highway Research Board of the Division of Engineering Research, National Academy of Sciences-National Research Council, 1966

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17
Washington, D.C. : National Academy of Sciences, 1965

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19
Washington, 1956

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20
gan Thomas, Edwin Neal, 1930-
Washington, D.C. : Highway Research Board, National Research Council, 1970

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