Winfrey, R., & Zellner, C. A. (1971). Summary and evaluation of economic consequences of highway improvements. Highway Research Board, National Research Council.
Citace podle Chicago (17th ed.)Winfrey, Robley, a Carl A. Zellner. Summary and Evaluation of Economic Consequences of Highway Improvements. Washington, D.C: Highway Research Board, National Research Council, 1971.
Citace podle MLA (9th ed.)Winfrey, Robley, a Carl A. Zellner. Summary and Evaluation of Economic Consequences of Highway Improvements. Highway Research Board, National Research Council, 1971.
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