APA-viite (7. p.)
Cordell, K., & Wolff, S. (2005). Germany's foreign policy towards Poland and the Czech Republic: Ostpolitik revisited. Routledge.
Chicago-viite (17. p.)
Cordell, Karl, ja Stefan Wolff. Germany's Foreign Policy Towards Poland and the Czech Republic: Ostpolitik Revisited. London ; New York: Routledge, 2005.
MLA-viite (9. p.)
Cordell, Karl, ja Stefan Wolff. Germany's Foreign Policy Towards Poland and the Czech Republic: Ostpolitik Revisited. Routledge, 2005.
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