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1974
1974
NATIONAL TRANSPORTATION RESEARCH INFORMATION SERVICES NETWORK

Transportation Research Record, Issue 493, pp 21-26

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1974
NATIONAL TRANSPORTATION RESEARCH INFORMATION SERVICES NETWORK

Transportation Research Record, Issue 493, pp 26-28

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1974
NATIONAL TRANSPORTATION RESEARCH INFORMATION SERVICES NETWORK

Transportation Research Record, Issue 493, pp 28-34

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1974
NATIONAL TRANSPORTATION RESEARCH INFORMATION SERVICES NETWORK

Transportation Research Record, Issue 493, pp 34-37

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1974
1974
BENEFITS AND COSTS OF TOURISM: A REGIONAL POINT OF VIEW

Transportation Research Record, Issue 490, pp 1-9

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1974
HIGHWAY USER INVESTMENT STUDY

Transportation Research Record, Issue 490, pp 20-30

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1974
1974
1973-12
URBAN AREA HIGHWAY GUIDE SIGNING

NCHRP Research Results Digest, Issue 52, 7 p.

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1973-04
SURVEY ON SHOULDER DESIGN AND OPERATION PRACTICES

Highway Research Circular, Issue 142, p. 1-2

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