Wiel, C. v. d. (1991). History of canon law. Peeters Press.
Lua i Stíl Chicago (17ú heag.)Wiel, Constant van de. History of Canon Law. Louvain: Peeters Press, 1991.
Lua MLA (9ú heag.)Wiel, Constant van de. History of Canon Law. Peeters Press, 1991.
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