Ricketts, P. (2010). High-ranking widows in medieval Iceland and Yorkshire: Property, pwer, marriage ad identity in the twelfth and thirteenth centuries. Brill.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रRicketts, Philadelphia. High-ranking Widows in Medieval Iceland and Yorkshire: Property, Pwer, Marriage Ad Identity in the Twelfth and Thirteenth Centuries. Leiden: Brill, 2010.
एमएलए (9वां संस्करण) प्रशस्ति पत्रRicketts, Philadelphia. High-ranking Widows in Medieval Iceland and Yorkshire: Property, Pwer, Marriage Ad Identity in the Twelfth and Thirteenth Centuries. Brill, 2010.
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