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The energy outlook for transportation in the United States
Campbell, M. Earl - In: Traffic quarterly : an independent journal for better … 27 (1973) 2, pp. 183-209
Persistent link: https://www.econbiz.de/10001972067
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Identifying a highway problem
Campbell, M. Earl - In: Traffic quarterly : an independent journal for better … 21 (1967) 4, pp. 543-551
Persistent link: https://www.econbiz.de/10001972074
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Toward a strategy of highway research administration
Campbell, M. Earl - In: Traffic quarterly : an independent journal for better … 21 (1967) 1, pp. 139-155
Persistent link: https://www.econbiz.de/10001972082
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Transportation quality : research challenge and promise
Campbell, M. Earl - In: Traffic quarterly : an independent journal for better … 17 (1963) 3, pp. 395-407
Persistent link: https://www.econbiz.de/10001972085