(1994). Life skills education for children and adolescents in schools. World Health Organization, Division of Mental Health.
Chicago-Zitierstil (17. Ausg.)Life Skills Education for Children and Adolescents in Schools. Genéva: World Health Organization, Division of Mental Health, 1994.
MLA-Zitierstil (9. Ausg.)Life Skills Education for Children and Adolescents in Schools. World Health Organization, Division of Mental Health, 1994.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.