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1BookPublished 1967“…United States. Bureau of Public Roads…”
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2
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3BookPublished 1962“…United States. Bureau of Public Roads…”
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4
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5BookPublished 1963“…United States. Bureau of Public Roads…”
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6BookPublished 1964“…United States Bureau of Public Roads…”
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7BookPublished 1967“…United States. Bureau of Public Roads…”
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8
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9
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10
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11BookPublished 1963“…United States. Bureau of Public Roads…”
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12
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13
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14BookPublished 1965“…United States. Bureau of Public Roads…”
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15BookPublished 1970“…United States. Bureau of Public Roads…”
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16BookPublished 1964“…United States. Bureau of Public Roads…”
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17
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18BookPublished 1965“…United States. Bureau of Public Roads. Bridge Division. Hydraulics Branch…”
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19
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20BookPublished 1950“…United States. Bureau of Public Roads…”