APA (7th ed.) Citation

Key, V. O. (1961). Public opinion and American democracy ([1st ed.].). Knopf.

Chicago Style (17th ed.) Citation

Key, V. O. Public Opinion and American Democracy. [1st ed.]. New York: Knopf, 1961.

MLA (9th ed.) Citation

Key, V. O. Public Opinion and American Democracy. [1st ed.]. Knopf, 1961.