APA引文

Tignor, R. (2002). Worlds Together, Worlds Apart. History of the Modern World from the Mongol Empire to the Present. McGraw Hill Companies Inc.

Trích dẫn kiểu Chicago

Tignor, Robert. Worlds Together, Worlds Apart. History of the Modern World From the Mongol Empire to the Present. McGraw Hill Companies Inc, 2002.

MLA引文

Tignor, Robert. Worlds Together, Worlds Apart. History of the Modern World From the Mongol Empire to the Present. McGraw Hill Companies Inc, 2002.

警告：這些引文格式不一定是100％准確.