Friedrich, C. J. (1968). Constitutional government and democracy: Theory and practice in Europe and America. Blaisdell Pub.
Čikaški stil citiranja (17. izdanje)Friedrich, Carl Joachim. Constitutional Government and Democracy: Theory and Practice in Europe and America. Toronto: Blaisdell Pub, 1968.
MLA način citiranja (9. izdanje)Friedrich, Carl Joachim. Constitutional Government and Democracy: Theory and Practice in Europe and America. Blaisdell Pub, 1968.
Upozorenje: Ovi citati možda nisu uvijek 100% točni.