Trudgill, P. (2004). Dialects (2nd ed.). Routledge.
Chicago Style aipamenaTrudgill, Peter. Dialects. 2nd ed. London: Routledge, 2004.
MLA aipamenaTrudgill, Peter. Dialects. 2nd ed. Routledge, 2004.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.