West, W. M., & West, R. (1934). The story of man's early progress (New ed.). Allyn and Bacon.
Citace podle Chicago (17th ed.)West, Willis Mason, a Ruth West. The Story of Man's Early Progress. New ed. Boston: Allyn and Bacon, 1934.
Citace podle MLA (9th ed.)West, Willis Mason, a Ruth West. The Story of Man's Early Progress. New ed. Allyn and Bacon, 1934.
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