อุตสาหกรรมรถยนต์กับการเปลี่ยนแปลงวิถีชีวิตของชาวอเมริกันในทศวรรษ ๑๙๒๐

George Soule, Prosperity Decade : From War to Depression 1917-1929 (N.Y. Rinchart & Company, Inc. 1947), p. 164.

Mark Sullivan, Our Times, Vol. 1 (N.Y. : Charles Scribner's Sons, 1926) p. 428.

Lawrence H. Seltzer, A Financial History of the American Automobile (Boston : Houghton Miffin Company, 1928) p. 20.

a Paul Goodman, Frank O. Catell, American in the Twentieth The Beginning of Contemporary America (N.Y. : Holt, Rinehart and Wilson, Inc., 1972), p. 8

Seltzer, A Financial History of the American Automobile, p.79.