O'Callaghan. Alfonso X, the Justinian of His Age. Cornell University Press.
Chicago Style (17th ed.) CitationO'Callaghan. Alfonso X, the Justinian of His Age. Cornell University Press.
MLA (8th ed.) CitationO'Callaghan. Alfonso X, the Justinian of His Age. Cornell University Press.
Warning: These citations may not always be 100% accurate.