Tignor, R. L. (2014). Worlds together, worlds apart, volume 1: Beginnings through the fifteenth century (Fourth edition.). W. W. Norton and Company.
Chicago Style (17. basım) AtıfTignor, Robert L. Worlds Together, Worlds Apart, Volume 1: Beginnings Through the Fifteenth Century. Fourth edition. New York ; London: W. W. Norton and Company, 2014.
MLA (8th ed.) AtıfTignor, Robert L. Worlds Together, Worlds Apart, Volume 1: Beginnings Through the Fifteenth Century. Fourth edition. W. W. Norton and Company, 2014.
Uyarı: Bu alıntı herzaman %100 doğru olmayabilir..