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.
芝加哥风格引文ebrary, Inc, Robert O. Crummey, 与 Lloyd E. Berry. Rude & Barbarous Kingdom: Russia in the Accounts of Sixteenth-century English Voyagers. Madison: University of Wisconsin Press, 1968.
MLA引文ebrary, Inc, et al. Rude & Barbarous Kingdom: Russia in the Accounts of Sixteenth-century English Voyagers. University of Wisconsin Press, 1968.
警告：这些引文格式不一定是100％准确.