International Social Security Association, 12th general meeting, Mexico, 1955. (1956). Recent developments in the field of social security, 1953-1955. [s.n.
Lua i Stíl Chicago (17ú heag.)International Social Security Association, 12th general meeting, Mexico, 1955. Recent Developments in the Field of Social Security, 1953-1955. Geneva: [s.n, 1956.
Lua MLA (9ú heag.)International Social Security Association, 12th general meeting, Mexico, 1955. Recent Developments in the Field of Social Security, 1953-1955. [s.n, 1956.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.