Mitchell, T. F. (1975). Principles of Firthian linguistics. Longman.
Chicago Style aipamenaMitchell, T. F. Principles of Firthian Linguistics. London: Longman, 1975.
MLA aipamenaMitchell, T. F. Principles of Firthian Linguistics. Longman, 1975.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.