APA (7th ed.) Zitazioa
Green, S. W. (2001). How to prepare for the gre test (4th ed.). Galgotia Pub.
Chicago Style (17th ed.) Zitazioa
Green, Sharon Weiner. How to Prepare for the Gre Test. 4th ed. New Delhi: Galgotia Pub, 2001.
MLA (9th ed.) Zitazioa
Green, Sharon Weiner. How to Prepare for the Gre Test. 4th ed. Galgotia Pub, 2001.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.