Marx, C. (2012). The ultimate timeline of world history. Barron's Educational Series, Inc.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रMarx, Christoph. The Ultimate Timeline of World History. Hauppauge, New York: Barron's Educational Series, Inc, 2012.
एमएलए (9वां संस्करण) प्रशस्ति पत्रMarx, Christoph. The Ultimate Timeline of World History. Barron's Educational Series, Inc, 2012.
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