Não informado. (1967). International Social Security Review. International Social Security Association.
Chicago-referens (17:e uppl.)Não informado. International Social Security Review. Geneva, Suíça: International Social Security Association, 1967.
MLA-referens (8:e uppl.)Não informado. International Social Security Review. International Social Security Association, 1967.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.