USA Department of Health, Education, and Welfare, & Califano, J. A. (19). Safe school study. National Institute of Education.
Chicago-Zitierstil (17. Ausg.)USA Department of Health, Education, and Welfare, und Joseph A. Califano. Safe School Study. Washington, DC: National Institute of Education, 19.
MLA-Zitierstil (9. Ausg.)USA Department of Health, Education, and Welfare, und Joseph A. Califano. Safe School Study. National Institute of Education, 19.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.