APA aipamena

Greenbaum,Sidney. (2007). Oxford English grammar. OUP.

Chicago Style aipamena

Greenbaum,Sidney. Oxford English Grammar. New Delhi: OUP, 2007.

MLA aipamena

Greenbaum,Sidney. Oxford English Grammar. OUP, 2007.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.