Cita APA (7th ed.)

Friedrich, C. J. (1968). Trends of federalism in theory and practice. Praeger.

Cita Chicago (17th ed.)

Friedrich, Carl Joachim. Trends of Federalism in Theory and Practice. New York: Praeger, 1968.

Cita MLA (9th ed.)

Friedrich, Carl Joachim. Trends of Federalism in Theory and Practice. Praeger, 1968.