APA-Zitierstil (7. Ausg.)

Unell, B. (1995). 20 teachable virtues: Practical ways to pass on lessons of virtue and character to your children. A Perigee Book.

Chicago-Zitierstil (17. Ausg.)

Unell, Barbara. 20 Teachable Virtues: Practical Ways to Pass on Lessons of Virtue and Character to Your Children. New York: A Perigee Book, 1995.

MLA-Zitierstil (9. Ausg.)

Unell, Barbara. 20 Teachable Virtues: Practical Ways to Pass on Lessons of Virtue and Character to Your Children. A Perigee Book, 1995.