Duiker, W. J., & Spielvogel, J. J. (2014). The essential world history (Seventh edition.). Wadsworth, Cengage Learning.
Chicago Style (17th ed.) CitationDuiker, William J., and Jackson J. Spielvogel. The essential world history . Seventh edition. Australia: Wadsworth, Cengage Learning, 2014.
MLA (9th ed.) CitationDuiker, William J., and Jackson J. Spielvogel. The essential world history . Seventh edition. Wadsworth, Cengage Learning, 2014.
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