APA-viite (7. p.)

Beer, S. H., & Ulam, A. B. (1958). Patterns of government: The major political systems of Europe. Random House.

Chicago-viite (17. p.)

Beer, Samuel Hutchison, ja Adams Burno Ulam. Patterns of Government: The Major Political Systems of Europe. New York: Random House, 1958.

MLA-viite (9. p.)

Beer, Samuel Hutchison, ja Adams Burno Ulam. Patterns of Government: The Major Political Systems of Europe. Random House, 1958.