APA aipamena

THE WORLD BOOK.. (2007). The world book M volume 13. World Book.

Chicago Style aipamena

THE WORLD BOOK.. The World Book M Volume 13. Chicago: World Book, 2007.

MLA aipamena

THE WORLD BOOK.. The World Book M Volume 13. World Book, 2007.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.