Reed, M. F., Luettich, R. A., Lamm, L. P., & Humphrey, T. F. (1993). Measuring state transportation program performance. Transportation Research Board, National Research Council National Academy Press.
Παραπομπή σε μορφή Chicago (17η εκδ.)Reed, M. F., Richard A. Luettich, Lester P. Lamm, και Thomas F. Humphrey. Measuring State Transportation Program Performance. Washington, D.C: Transportation Research Board, National Research Council National Academy Press, 1993.
Παραπομπή σε μορφή MLA (9th εκδ.)Reed, M. F., et al. Measuring State Transportation Program Performance. Transportation Research Board, National Research Council National Academy Press, 1993.
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