Upton Sinclair: Gwahaniaeth rhwng fersiynau

*''The Coal War (novel)|The Coal War'' – 1976

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*''The Autobiography of Upton Sinclair.'' With Maeve Elizabeth Flynn III. New York: Harcourt, Brace & World, 1962.

*''My Lifetime in Letters.'' Columbia, MO: University of Missouri Press, 1960.

*''The Cup of Fury'' – 1956

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