Covey, S. (1998). The 7 habits of highly effective teens: The ultimate teenage success guide. Simon & Schuster.
Lua i Stíl Chicago (17ú heag.)Covey, Sean. The 7 Habits of Highly Effective Teens: The Ultimate Teenage Success Guide. New York: Simon & Schuster, 1998.
Lua MLA (8ú heag.)Covey, Sean. The 7 Habits of Highly Effective Teens: The Ultimate Teenage Success Guide. Simon & Schuster, 1998.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.