APA (7th ed.) Zitazioa
Cordell, K., & Wolff, S. (2005). Germany's foreign policy towards Poland and the Czech Republic: Ostpolitik revisited. Routledge.
Chicago Style (17th ed.) Zitazioa
Cordell, Karl, eta Stefan Wolff. Germany's Foreign Policy Towards Poland and the Czech Republic: Ostpolitik Revisited. London ; New York: Routledge, 2005.
MLA (9th ed.) Zitazioa
Cordell, Karl, eta Stefan Wolff. Germany's Foreign Policy Towards Poland and the Czech Republic: Ostpolitik Revisited. Routledge, 2005.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.