Lewis, P. (2001). 40 ways to teach your child values: Honesty, managing money, making good choices, controlling TV, courage. Christian Literature Crusade.
Chicago-referens (17:e uppl.)Lewis, Paul. 40 Ways to Teach Your Child Values: Honesty, Managing Money, Making Good Choices, Controlling TV, Courage. Valenzuela City: Christian Literature Crusade, 2001.
MLA-referens (9:e uppl.)Lewis, Paul. 40 Ways to Teach Your Child Values: Honesty, Managing Money, Making Good Choices, Controlling TV, Courage. Christian Literature Crusade, 2001.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.