(1992). Encyclopedia of government and politics. Routledge.
Chicago Style (17th ed.) ZitazioaEncyclopedia of Government and Politics. London: Routledge, 1992.
MLA (9th ed.) ZitazioaEncyclopedia of Government and Politics. Routledge, 1992.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.