Allen, W. B. (1975). A model of the demand for transportation: The case of air freight. A Xerox Co..
Chicago Style (17th ed.) CitationAllen, William Bruce. A Model of the Demand for Transportation: The Case of Air Freight. Ann Arbour, Mich: A Xerox Co., 1975.
MLA (8th ed.) CitationAllen, William Bruce. A Model of the Demand for Transportation: The Case of Air Freight. A Xerox Co., 1975.
Warning: These citations may not always be 100% accurate.