United States. Social Security Administration. Office of Research and Statistics. (1980). Social security programs through-out the world, 1979. Government Printing Office.
Chicago-Zitierstil (17. Ausg.)United States. Social Security Administration. Office of Research and Statistics. Social Security Programs Through-out the World, 1979. Washington, D.C: Government Printing Office, 1980.
MLA-Zitierstil (9. Ausg.)United States. Social Security Administration. Office of Research and Statistics. Social Security Programs Through-out the World, 1979. Government Printing Office, 1980.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.