Friedrich, C. J. (1968). Constitutional government and democracy: Theory and practice in Europe and America (4th ed.). Blaisdell Pub..
芝加哥风格引文Friedrich, Carl J. Constitutional Government and Democracy: Theory and Practice in Europe and America. 4th ed. Boston: Blaisdell Pub., 1968.
MLA引文Friedrich, Carl J. Constitutional Government and Democracy: Theory and Practice in Europe and America. 4th ed. Blaisdell Pub., 1968.
警告：这些引文格式不一定是100％准确.