(1972). Survey of social security in the Federal Republic of Germany (Position as at: June 1970.).
Chicago-Zitierstil (17. Ausg.)Survey of Social Security in the Federal Republic of Germany. Position as at: June 1970. Bonn, 1972.
MLA-Zitierstil (9. Ausg.)Survey of Social Security in the Federal Republic of Germany. Position as at: June 1970. 1972.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.