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.
Lua i Stíl Chicago (17ú heag.)ebrary, Inc, Robert O. Crummey, agus Lloyd E. Berry. Rude & Barbarous Kingdom: Russia in the Accounts of Sixteenth-century English Voyagers. Madison: University of Wisconsin Press, 1968.
Lua MLA (9ú heag.)ebrary, Inc, et al. Rude & Barbarous Kingdom: Russia in the Accounts of Sixteenth-century English Voyagers. University of Wisconsin Press, 1968.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.