Kail, R. V. (2007). Children and their development (Fourth edition.). Pearson Education/Prentice Hall.
Chicago-referens (17:e uppl.)Kail, Robert V. Children and Their Development. Fourth edition. Upper Saddle River, NJ: Pearson Education/Prentice Hall, 2007.
MLA-referens (9:e uppl.)Kail, Robert V. Children and Their Development. Fourth edition. Pearson Education/Prentice Hall, 2007.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.