Beer, S. H., & Ulam, A. B. (1962). Patterns of government: The major political systems of Europe. Random House.
Citação norma ChicagoBeer, Samuel Hutchison, and Adam Bruno Ulam. Patterns of Government: The Major Political Systems of Europe. New York: Random House, 1962.
Citação norma MLABeer, Samuel Hutchison, and Adam Bruno Ulam. Patterns of Government: The Major Political Systems of Europe. Random House, 1962.
Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.