Duggan, C. (1998). Improba pestis falsitatis: Forgeries and the Problem of Forgery in Twelfth-Century Decretal Collections (with special reference to English Cases). Decretals and the creation of "new law" in the twelfth century, 59-87.
Παραπομπή σε μορφή Chicago (17η εκδ.)Duggan, Charles. "Improba Pestis Falsitatis: Forgeries and the Problem of Forgery in Twelfth-Century Decretal Collections (with Special Reference to English Cases)." Decretals and the Creation of "New Law" in the Twelfth Century 1998: 59-87.
Παραπομπή σε μορφή MLA (9th εκδ.)Duggan, Charles. "Improba Pestis Falsitatis: Forgeries and the Problem of Forgery in Twelfth-Century Decretal Collections (with Special Reference to English Cases)." Decretals and the Creation of "New Law" in the Twelfth Century, 1998, pp. 59-87.
