Strong, C. F. (1963). Modern political constitutions: An introduction to the comparative study of their history and existing form ([6th rev. and enl. ed.].). Sidgwick & Jackson.
Cita Chicago (17th ed.)Strong, Charles Frederick. Modern Political Constitutions: An Introduction to the Comparative Study of Their History and Existing Form. [6th rev. and enl. ed.]. London: Sidgwick & Jackson, 1963.
Cita MLA (9th ed.)Strong, Charles Frederick. Modern Political Constitutions: An Introduction to the Comparative Study of Their History and Existing Form. [6th rev. and enl. ed.]. Sidgwick & Jackson, 1963.
Atenció: Aquestes cites poden no estar 100% correctes.