Não informado. (1967). International Social Security Review. International Social Security Association.
Lua i Stíl Chicago (17ú heag.)Não informado. International Social Security Review. Geneva, Suíça: International Social Security Association, 1967.
Lua MLA (8ú heag.)Não informado. International Social Security Review. International Social Security Association, 1967.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.