Hamburger, L. (1939). The extension of collective agreements to cover entire trades and industries. International Labour Organization.
Citazione stile Chigago Style (17a edizione)Hamburger, L. The Extension of Collective Agreements to Cover Entire Trades and Industries. International Labour Organization, 1939.
Citatione MLA (9a ed.)Hamburger, L. The Extension of Collective Agreements to Cover Entire Trades and Industries. International Labour Organization, 1939.
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