Hammond , I. (1994). Hammond world atlas: Collectors edition. Hammond Incorpoated.
Chicago Style aipamenaHammond , Incorporated. Hammond World Atlas: Collectors Edition. New Jersey: Hammond Incorpoated, 1994.
MLA aipamenaHammond , Incorporated. Hammond World Atlas: Collectors Edition. Hammond Incorpoated, 1994.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.