APA aipamena

Tolkien, J. (1987). The two towers. New York: Random House.

Chicago Style aipamena

Tolkien, J.R.R. The Two Towers. New York: Random House, 1987.

MLA aipamena

Tolkien, J.R.R. The Two Towers. New York: Random House, 1987.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.