Beer, S. H., & Ulam, A. B. (1973). Patterns of government: The major political systems of Europe (3d ed. [rev. and reset].). Random House.
Chicagoスタイル(17版)引用形式Beer, Samuel Hutchison, , Adams Burno Ulam. Patterns of Government: The Major Political Systems of Europe. 3d ed. [rev. and reset]. New York: Random House, 1973.
MLA(9版)引用形式Beer, Samuel Hutchison, , Adams Burno Ulam. Patterns of Government: The Major Political Systems of Europe. 3d ed. [rev. and reset]. Random House, 1973.
警告: この引用は必ずしも正確ではありません.