APA (7th ed.) Citation

Covey. (2006). The 6 most important decisions you'll ever make: A guide for teens. Fireside.

Chicago Style (17th ed.) Citation

Covey. The 6 Most Important Decisions You'll Ever Make: A Guide for Teens. New York: Fireside, 2006.

MLA (8th ed.) Citation

Covey. The 6 Most Important Decisions You'll Ever Make: A Guide for Teens. Fireside, 2006.

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