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1960
ILLUMINATION REQUIREMENTS FOR ROADWAY VISUAL TASKS

Highway Research Board Bulletin, Issue 255

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1956
OBSERVED MANPOWER REQUIREMENTS

Highway Research Board Bulletin, Issue 134, 3p

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1955
ENGINEERING-PERSONNEL NEEDS FOR HIGHWAY DEPARTMENTS

Highway Research Board Bulletin, Issue 106, 24p

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1940
1935
MOTOR VEHICLE POWER REQUIREMENTS ON HIGHWAY GRADES

Highway Research Board Proceedings, Volume 14

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1929
RESEARCH

Highway Research Board Proceedings, Volume 8

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