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Labor in the U.S.S.R
Nash, Edmund, (1972)
Workers and the evolving economy of the eighties : hearings before the Committee on Labor and Human Resources, United States Senate, Ninety-sixth Congress, second session, on examination of work force dislocation and exploring ways to enhance worker mobility and retraining to ensure full utilization of our work force's potential, September 17 and 18, 1980
(1981)
Aides personnelles
Même, Colette, (1979)