Fleming, H. M. (1966). Gasoline prices and competition. Appleton-Century-Crofts.
Dyfyniad Arddull ChicagoFleming, Harold M. Gasoline Prices and Competition. New York: Appleton-Century-Crofts, 1966.
Dyfyniad MLAFleming, Harold M. Gasoline Prices and Competition. Appleton-Century-Crofts, 1966.
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