APA (7th ed.) Citation

Frowein, J. A. (1999). Constitutionalism in the face of the changing nation state. Constitutionalism, universalism and democracy.

Chicago Style (17th ed.) Citation

Frowein, Jochen Abr. "Constitutionalism in the Face of the Changing Nation State." Constitutionalism, Universalism and Democracy 1999.

MLA (9th ed.) Citation

Frowein, Jochen Abr. "Constitutionalism in the Face of the Changing Nation State." Constitutionalism, Universalism and Democracy, 1999.

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