Rockwell, T. H., Ernst, R. L., & Rulon, M. J. (1970). Visual requirements in night driving. Highway Research Board, National Research Council.
Chicago-viite (17. p.)Rockwell, Thomas Hugh, Ronald L. Ernst, ja Michael J. Rulon. Visual Requirements in Night Driving. Washington, D.C: Highway Research Board, National Research Council, 1970.
MLA-viite (9. p.)Rockwell, Thomas Hugh, et al. Visual Requirements in Night Driving. Highway Research Board, National Research Council, 1970.
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