APA (7th ed.) Citation

Key, V. O. (1961). Public opinion and american democracy. Alfred A. Knopf.

Chicago Style (17th ed.) Citation

Key, V. O. Public Opinion and American Democracy. Nueva York: Alfred A. Knopf, 1961.

MLA (9th ed.) Citation

Key, V. O. Public Opinion and American Democracy. Alfred A. Knopf, 1961.

Warning: These citations may not always be 100% accurate.