APA (7th ed.) Citation

Key, V. O. (1956). American state politics: An introduction. Alfred A. Knopf.

Chicago Style (17th ed.) Citation

Key, V. O. American State Politics: An Introduction. New York: Alfred A. Knopf, 1956.

MLA (9th ed.) Citation

Key, V. O. American State Politics: An Introduction. Alfred A. Knopf, 1956.

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