(1930). Wages and hours of work in the coal-mining industry in 1927: III, Wages and hours of work in non-european countries. International Labour Organization.
Style de citation Chicago (17e éd.)Wages and Hours of Work in the Coal-mining Industry in 1927: III, Wages and Hours of Work in Non-european Countries. International Labour Organization, 1930.
Style de citation MLA (9e éd.)Wages and Hours of Work in the Coal-mining Industry in 1927: III, Wages and Hours of Work in Non-european Countries. International Labour Organization, 1930.
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