International Labor Office. (1952). Social security: Achievements and future policy.
Chicago-referens (17:e uppl.)International Labor Office. Social Security: Achievements and Future Policy. Geneva, 1952.
MLA-referens (9:e uppl.)International Labor Office. Social Security: Achievements and Future Policy. 1952.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.