APA (7th ed.) Citation

Paul. (2003). It's hard to make a difference when you can't find your keys: The seven step path to becoming truly organized. Penguin Compass.

Chicago Style (17th ed.) Citation

Paul. It's Hard to Make a Difference When You Can't Find Your Keys: The Seven Step Path to Becoming Truly Organized. New York: Penguin Compass, 2003.

MLA (8th ed.) Citation

Paul. It's Hard to Make a Difference When You Can't Find Your Keys: The Seven Step Path to Becoming Truly Organized. Penguin Compass, 2003.