Duggan, C. (1998). Decretals of Alexander III to England. Decretals and the creation of "new law" in the twelfth century, 87-151.
Chicago Style (17th ed.) CitationDuggan, Charles. "Decretals of Alexander III to England." Decretals and the Creation of "New Law" in the Twelfth Century 1998: 87-151.
MLA (8th ed.) CitationDuggan, Charles. "Decretals of Alexander III to England." Decretals and the Creation of "New Law" in the Twelfth Century, 1998, pp. 87-151.
Warning: These citations may not always be 100% accurate.