Tignor, R. L. (2014). Worlds together, worlds apart, volume 1: Beginnings through the fifteenth century (Fourth edition.). W. W. Norton and Company.
Citazione stile Chigago Style (17a edizione)Tignor, Robert L. Worlds Together, Worlds Apart, Volume 1: Beginnings Through the Fifteenth Century. Fourth edition. New York ; London: W. W. Norton and Company, 2014.
Citatione MLA (8a ed.)Tignor, Robert L. Worlds Together, Worlds Apart, Volume 1: Beginnings Through the Fifteenth Century. Fourth edition. W. W. Norton and Company, 2014.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.