ebrary, Inc. (2006). The Hutchinson chronology of world history. Helicon.
Čikaški stil citiranja (17. izdanje)ebrary, Inc. The Hutchinson Chronology of World History. Abingdon, England: Helicon, 2006.
MLA način citiranja (9. izdanje)ebrary, Inc. The Hutchinson Chronology of World History. Helicon, 2006.
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