Duiker, W. J. (2015). Contemporary world history (Sixth edition.). Cengage Learning.
Čikaški stil citiranja (17. izdanje)Duiker, William J. Contemporary World History. Sixth edition. Stamford, Conn: Cengage Learning, 2015.
MLA način citiranja (9. izdanje)Duiker, William J. Contemporary World History. Sixth edition. Cengage Learning, 2015.
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