APA (7th ed.) Zitazioa
Sommer, P. (2005). Continued. Wesleyan University Press.
Chicago Style (17th ed.) Zitazioa
Sommer, Piotr. Continued. Middletown, Conn.: Wesleyan University Press, 2005.
MLA (9th ed.) Zitazioa
Sommer, Piotr. Continued. Wesleyan University Press, 2005.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.