Wheeler, W. B., & Becker, S. D. (2002). Discovering the American past: A look at the evidence (Fifth Edition.). Houghton Mifflin Co.
Citace podle Chicago (17th ed.)Wheeler, William Bruce, a Susan D. Becker. Discovering the American Past: A Look at the Evidence. Fifth Edition. Boston: Houghton Mifflin Co, 2002.
Citace podle MLA (9th ed.)Wheeler, William Bruce, a Susan D. Becker. Discovering the American Past: A Look at the Evidence. Fifth Edition. Houghton Mifflin Co, 2002.
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