Wagner, F. A., Gerlough, D. L., & Barnes, F. C. (1969). Improved criteria for traffic signal systems on urban arterials. Highway Research Board, National Research Council.
Lua i Stíl Chicago (17ú heag.)Wagner, Frederick A., Daniel L. Gerlough, agus F. C. Barnes. Improved Criteria for Traffic Signal Systems on Urban Arterials. Washington, D.C: Highway Research Board, National Research Council, 1969.
Lua MLA (9ú heag.)Wagner, Frederick A., et al. Improved Criteria for Traffic Signal Systems on Urban Arterials. Highway Research Board, National Research Council, 1969.
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