Universities National Bureau Committee for Economic Research. (1965). Transportation economics: A conference of the Universities-National bureau committee for economic research. New York: Distributed by Columbia University Press.
Chicago-tyylinen lähdeviittausUniversities National Bureau Committee for Economic Research. Transportation Economics: A Conference of the Universities-National Bureau Committee for Economic Research. New York: Distributed by Columbia University Press, 1965.
MLA-viiteUniversities National Bureau Committee for Economic Research. Transportation Economics: A Conference of the Universities-National Bureau Committee for Economic Research. New York: Distributed by Columbia University Press, 1965.
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