The concept of heresy in the Middle Ages (11th-13th C.)

MLA

Lourdaux, Willem, and Danïel Verhelst. The Concept of Heresy In the Middle Ages (11th-13th C.). 2nd ed. Leuven: Leuven university press, 1983.

APA

Lourdaux, W., & Verhelst, D. (1983). The concept of heresy in the Middle Ages (11th-13th C.). 2nd ed. Leuven: Leuven university press.

Chicago

Lourdaux, Willem ed., and Danïel Verhelst ed. The Concept of Heresy In the Middle Ages (11th-13th C.). 2nd ed. Leuven: Leuven university press, 1983.