APA Zitierstil

Lewis, A. R. (2008). The closing of the medieval frontier, 1250 - 1350. The medieval frontiers of Latin Christendom, 181.

Chicago Zitierstil

Lewis, Archibald Ross. "The Closing of the Medieval Frontier, 1250 - 1350." The Medieval Frontiers of Latin Christendom 2008: 181.

MLA Zitierstil

Lewis, Archibald Ross. "The Closing of the Medieval Frontier, 1250 - 1350." The Medieval Frontiers of Latin Christendom, 2008, p. 181.