Cita APA (7a ed.)

Crummey, R. O., & Berry, L. E. (1968). Rude & barbarous kingdom: Russia in the accounts of sixteenth-century English voyagers. University of Wisconsin Press.

Cita Chicago Style (17a ed.)

Crummey, Robert O., y Lloyd E. Berry. Rude & Barbarous Kingdom: Russia in the Accounts of Sixteenth-century English Voyagers. Madison: University of Wisconsin Press, 1968.

Cita MLA (8a ed.)

Crummey, Robert O., y Lloyd E. Berry. Rude & Barbarous Kingdom: Russia in the Accounts of Sixteenth-century English Voyagers. University of Wisconsin Press, 1968.