APA-viite (7. p.)

Shannon, A. C. (1949). The popes and heresy in the thirteenth century. Augustinian Press.

Chicago-viite (17. p.)

Shannon, Albert Clement. The Popes and Heresy in the Thirteenth Century. Villanova, Pa.: Augustinian Press, 1949.

MLA-viite (8. p.)

Shannon, Albert Clement. The Popes and Heresy in the Thirteenth Century. Augustinian Press, 1949.