USA Department of Health, Education, and Welfare. (1978). Social indicators. Dept. of Health, Education and Welfare.
Chicago-Zitierstil (17. Ausg.)USA Department of Health, Education, and Welfare. Social Indicators. Washington, D.C: Dept. of Health, Education and Welfare, 1978.
MLA-Zitierstil (9. Ausg.)USA Department of Health, Education, and Welfare. Social Indicators. Dept. of Health, Education and Welfare, 1978.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.