Lacey, H., & Lambert, T. (2009). Protection and Immunity in Later Medieval England. Pontifical Institute of Mediaeval Studies.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रLacey, H., और T. Lambert. Protection and Immunity in Later Medieval England. Pontifical Institute of Mediaeval Studies, 2009.
एमएलए (9वां संस्करण) प्रशस्ति पत्रLacey, H., और T. Lambert. Protection and Immunity in Later Medieval England. Pontifical Institute of Mediaeval Studies, 2009.
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