(1997). The thirty years war (2nd ed.). Routledge.
Chicago Style (17th ed.) ZitazioaThe Thirty Years War. 2nd ed. London: Routledge, 1997.
MLA (9th ed.) ZitazioaThe Thirty Years War. 2nd ed. Routledge, 1997.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.