Clagett, M., & Clagett, M. a. (1966). Twelfth-century Europe and the foundations of modern society. University of Wisconsin Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रClagett, Marshall, और Marshall;et al Clagett. Twelfth-century Europe and the Foundations of Modern Society. University of Wisconsin Press, 1966.
एमएलए (9वां संस्करण) प्रशस्ति पत्रClagett, Marshall, और Marshall;et al Clagett. Twelfth-century Europe and the Foundations of Modern Society. University of Wisconsin Press, 1966.
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