Woytinsky, W. S. (1931). New statistics of collective agreements in Germany. International Labour Organization.
Style de citation Chicago (17e éd.)Woytinsky, W. S. New Statistics of Collective Agreements in Germany. International Labour Organization, 1931.
Style de citation MLA (9e éd.)Woytinsky, W. S. New Statistics of Collective Agreements in Germany. International Labour Organization, 1931.
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