APA (7th ed.) Citation

Allen. (2003). Ready for anything: 52 productivity principles for work and life. Penguin.

Chicago Style (17th ed.) Citation

Allen. Ready for Anything: 52 Productivity Principles for Work and Life. New York: Penguin, 2003.

MLA (8th ed.) Citation

Allen. Ready for Anything: 52 Productivity Principles for Work and Life. Penguin, 2003.

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