APA (7th ed.) Citation

(1973). Patterns of government: The major political systems of Europe (3.ed.). Random House.

Chicago Style (17th ed.) Citation

Patterns of Government: The Major Political Systems of Europe. 3.ed. New York, NY: Random House, 1973.

MLA (9th ed.) Citation

Patterns of Government: The Major Political Systems of Europe. 3.ed. Random House, 1973.