APA (7th ed.) Citation

Constant, B., O'Keeffe, D., & Hofmann, E. (2003). Principles of politics applicable to all governments. Liberty Fund.

Chicago Style (17th ed.) Citation

Constant, Benjamin, Dennis O'Keeffe, and Etienne Hofmann. Principles of Politics Applicable to All Governments. Indianapolis: Liberty Fund, 2003.

MLA (8th ed.) Citation

Constant, Benjamin, et al. Principles of Politics Applicable to All Governments. Liberty Fund, 2003.