Lourdaux, W. (1983). The concept of heresy in the Middle Ages: (11th - 13th c.) ; proceedings Mediaevalia Lovaniensia / 1.
Chicago Style (17th ed.) CitationLourdaux, Willem. "The Concept of Heresy in the Middle Ages: (11th - 13th C.) ; Proceedings." Mediaevalia Lovaniensia / 1 1983.
MLA (8th ed.) CitationLourdaux, Willem. "The Concept of Heresy in the Middle Ages: (11th - 13th C.) ; Proceedings." Mediaevalia Lovaniensia / 1, 1983.
Warning: These citations may not always be 100% accurate.