McAuliffe, M. S. (2012). Clash of crowns: William the Conqueror, Richard Lionheart, and Eleanor of Aquitaine : a story of bloodshed, betrayal, and revenge. Rowman & Littlefield.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रMcAuliffe, Mary Sperling. Clash of Crowns: William the Conqueror, Richard Lionheart, and Eleanor of Aquitaine : A Story of Bloodshed, Betrayal, and Revenge. Lanham, Md.: Rowman & Littlefield, 2012.
एमएलए (8वां संस्करण) प्रशस्ति पत्रMcAuliffe, Mary Sperling. Clash of Crowns: William the Conqueror, Richard Lionheart, and Eleanor of Aquitaine : A Story of Bloodshed, Betrayal, and Revenge. Rowman & Littlefield, 2012.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.