APA (7th ed.) Zitazioa
ebrary, Inc. (2006). The Hutchinson chronology of world history (Compact ed.). Helicon.
Chicago Style (17th ed.) Zitazioa
ebrary, Inc. The Hutchinson Chronology of World History. Compact ed. Abingdon, England: Helicon, 2006.
MLA (9th ed.) Zitazioa
ebrary, Inc. The Hutchinson Chronology of World History. Compact ed. Helicon, 2006.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.