APA aipamena

National Geographic Society. (2007). 1912-13, η μεγάλη εξόρμηση. Αθήνα: National Geographic.

Chicago Style aipamena

National Geographic Society. 1912-13, η μεγάλη εξόρμηση. Αθήνα: National Geographic, 2007.

MLA aipamena

National Geographic Society. 1912-13, η μεγάλη εξόρμηση. Αθήνα: National Geographic, 2007.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.