APA (7th ed.) Zitazioa
Featherston, S. (2001). Empty categories in sentence processing. J. Benjamins.
Chicago Style (17th ed.) Zitazioa
Featherston, Sam. Empty Categories in Sentence Processing. Amsterdam ; Philadelphia: J. Benjamins, 2001.
MLA (9th ed.) Zitazioa
Featherston, Sam. Empty Categories in Sentence Processing. J. Benjamins, 2001.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.