Changeable message sign displays during non-incident, non-roadwork periods /
Conrad L. Dudek.

APA Citation

Dudek, C. L., American Association of State Highway and Transportation Officials., National Cooperative Highway Research Program., National Research Council (U.S.). Transportation Research Board. (2008). Changeable message sign displays during non-incident, non-roadwork periods. Washington, D.C.: Transportation Research Board.

MLA Citation

Dudek, Conrad L, American Association of State Highway and Transportation Officials, National Cooperative Highway Research Program, and National Research Council (U.S.). Transportation Research Board. Changeable Message Sign Displays During Non-incident, Non-roadwork Periods. Washington, D.C.: Transportation Research Board, 2008.