APA (7th ed.) Citation

Tignor, R. (2008). Worlds together, worlds apart: A history of the world from the beginnings of humankind to the present (2nd ed.). W.W. Norton.

Chicago Style (17th ed.) Citation

Tignor, Robert. Worlds Together, Worlds Apart: A History of the World from the Beginnings of Humankind to the Present. 2nd ed. New York, NY: W.W. Norton, 2008.

MLA (8th ed.) Citation

Tignor, Robert. Worlds Together, Worlds Apart: A History of the World from the Beginnings of Humankind to the Present. 2nd ed. W.W. Norton, 2008.