Udall, J. (1991). A critical, old-spelling edition of The birth of Merlin (Q 1662). Modern Humanities Research Association.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रUdall, Joanna. A Critical, Old-spelling Edition of The Birth of Merlin (Q 1662). London: Modern Humanities Research Association, 1991.
एमएलए (8वां संस्करण) प्रशस्ति पत्रUdall, Joanna. A Critical, Old-spelling Edition of The Birth of Merlin (Q 1662). Modern Humanities Research Association, 1991.
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