APA (7th ed.) Citation

ALLEN. (2006). Creating wealth: Retire in ten years using Allen's seven principles of wealth. Free Press.

Chicago Style (17th ed.) Citation

ALLEN. Creating Wealth: Retire in Ten Years Using Allen's Seven Principles of Wealth. New York: Free Press, 2006.

MLA (9th ed.) Citation

ALLEN. Creating Wealth: Retire in Ten Years Using Allen's Seven Principles of Wealth. Free Press, 2006.