National Cooperative Transit Research & Development Program (U.S.), Deibel, L. E., & Zumwalt, B. A. (1986). Modular approach to on-board automatic data collection systems--seminar: An NCTRP staff digest of a seminar held to discuss the findings of NCTRP report 9 .. Transportation Research Board, National Research Council.

National Cooperative Transit Research & Development Program (U.S.), Lawrence E. Deibel, and Barbara A. Zumwalt. Modular Approach to On-board Automatic Data Collection Systems--seminar: An NCTRP Staff Digest of a Seminar Held to Discuss the Findings of NCTRP Report 9 .. Washington, D.C: Transportation Research Board, National Research Council, 1986.

National Cooperative Transit Research & Development Program (U.S.), et al. Modular Approach to On-board Automatic Data Collection Systems--seminar: An NCTRP Staff Digest of a Seminar Held to Discuss the Findings of NCTRP Report 9 .. Transportation Research Board, National Research Council, 1986.