APA (7th ed.) Zitazioa
Hammond Incorporated. (1993). Hammond atlas of the world. Hammond Inc..
Chicago Style (17th ed.) Zitazioa
Hammond Incorporated. Hammond Atlas of the World. Maplewood, N.J.: Hammond Inc., 1993.
MLA (9th ed.) Zitazioa
Hammond Incorporated. Hammond Atlas of the World. Hammond Inc., 1993.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.