Adams, R. (2004). Watership down. Penguin Books.
Chicago Style (17th ed.) ZitazioaAdams, Richard. Watership Down. New York: Penguin Books, 2004.
MLA (9th ed.) ZitazioaAdams, Richard. Watership Down. Penguin Books, 2004.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.