International Social Security Association, 12th general meeting, Mexico, 1955. (1956). Recent developments in the field of social security, 1953-1955. [s.n.
Citace podle Chicago (17th ed.)International Social Security Association, 12th general meeting, Mexico, 1955. Recent Developments in the Field of Social Security, 1953-1955. Geneva: [s.n, 1956.
Citace podle MLA (9th ed.)International Social Security Association, 12th general meeting, Mexico, 1955. Recent Developments in the Field of Social Security, 1953-1955. [s.n, 1956.
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