Cita APA

Beer, S. H., & Ulam, A. B. (1973). Patterns of government: The major political systems of Europe (3d ed. [rev. and reset].). Random House.

Citación estilo Chicago

Beer, Samuel Hutchison, and Adam Bruno Ulam. Patterns of Government: The Major Political Systems of Europe. 3d ed. [rev. and reset]. New York: Random House, 1973.

Cita MLA

Beer, Samuel Hutchison, and Adam Bruno Ulam. Patterns of Government: The Major Political Systems of Europe. 3d ed. [rev. and reset]. Random House, 1973.