Boniwell, I. (2012). Personal well-being lessons for secondary schools: Positive psychology in action for 11 to 14 year olds. Open University Press.
Chicago-Zitierstil (17. Ausg.)Boniwell, Ilona. Personal Well-being Lessons for Secondary Schools: Positive Psychology in Action for 11 to 14 Year Olds. Maidenhead: Open University Press, 2012.
MLA-Zitierstil (9. Ausg.)Boniwell, Ilona. Personal Well-being Lessons for Secondary Schools: Positive Psychology in Action for 11 to 14 Year Olds. Open University Press, 2012.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.