Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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