APA (7th ed.) Citation

Kirchhof, P. (2010). European Union: The European Union of states. Principles of European constitutional law.

Chicago Style (17th ed.) Citation

Kirchhof, Paul. "European Union: The European Union of States." Principles of European Constitutional Law 2010.

MLA (9th ed.) Citation

Kirchhof, Paul. "European Union: The European Union of States." Principles of European Constitutional Law, 2010.

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