Biber, D. (2006). University language: A corpus-based study of spoken and written registers (1a. ed.). John Benjamins.
Chicago Style (17th ed.) ZitazioaBiber, Douglas. University Language: A Corpus-based Study of Spoken and Written Registers. 1a. ed. Amsterdam: John Benjamins, 2006.
MLA (9th ed.) ZitazioaBiber, Douglas. University Language: A Corpus-based Study of Spoken and Written Registers. 1a. ed. John Benjamins, 2006.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.