APA (7th ed.) Citation

Whitney, D. C. (1967). The American Presidents. Doubleday.

Chicago Style (17th ed.) Citation

Whitney, David C. The American Presidents. Garden City, NY: Doubleday, 1967.

MLA (9th ed.) Citation

Whitney, David C. The American Presidents. Doubleday, 1967.

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