Knowles, D. (1962). Saints and scholars: Twenty-five medieval portraits. University Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रKnowles, David. Saints and Scholars: Twenty-five Medieval Portraits. Cambridge [Eng.]: University Press, 1962.
एमएलए (9वां संस्करण) प्रशस्ति पत्रKnowles, David. Saints and Scholars: Twenty-five Medieval Portraits. University Press, 1962.
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