Dyfyniad APA

Jennings, W. W. (1928). Introduction to American economic history. Thomas Y. Crowell.

Dyfyniad Arddull Chicago

Jennings, Walter Wilson. Introduction to American Economic History. New York: Thomas Y. Crowell, 1928.

Dyfyniad MLA

Jennings, Walter Wilson. Introduction to American Economic History. Thomas Y. Crowell, 1928.

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