APA (7th ed.) Citation

Olsen, E. D. (2011). European citizenship: With a nation-state, federal, or cosmopolitan twist? Oslo.

Chicago Style (17th ed.) Citation

Olsen, Espen D.H. European Citizenship: With a Nation-state, Federal, or Cosmopolitan Twist? Oslo, 2011.

MLA (8th ed.) Citation

Olsen, Espen D.H. European Citizenship: With a Nation-state, Federal, or Cosmopolitan Twist? Oslo, 2011.

Warning: These citations may not always be 100% accurate.