APA-viite (7. p.)

FRIEDERICH, C. J. (1968). Constitutional government and democracy: Theory and practice in Europe and America (4th ed.). Oxford and IBH. publisher.

Chicago-viite (17. p.)

FRIEDERICH, Carl J. Constitutional Government and Democracy: Theory and Practice in Europe and America. 4th ed. Calcutta: Oxford and IBH. publisher, 1968.

MLA-viite (9. p.)

FRIEDERICH, Carl J. Constitutional Government and Democracy: Theory and Practice in Europe and America. 4th ed. Oxford and IBH. publisher, 1968.