ebrary, Inc, Crummey, R. O., & Berry, L. E. (1968). Rude & barbarous kingdom: Russia in the accounts of sixteenth-century English voyagers. University of Wisconsin Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रebrary, Inc, Robert O. Crummey, और Lloyd E. Berry. Rude & Barbarous Kingdom: Russia in the Accounts of Sixteenth-century English Voyagers. Madison: University of Wisconsin Press, 1968.
एमएलए (9वां संस्करण) प्रशस्ति पत्रebrary, Inc, et al. Rude & Barbarous Kingdom: Russia in the Accounts of Sixteenth-century English Voyagers. University of Wisconsin Press, 1968.
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