Destrée, J. (1933). Popular arts and workers' spare time. International Labour Organization.
Citazione stile Chigago Style (17a edizione)Destrée, Jules. Popular Arts and Workers' Spare Time. International Labour Organization, 1933.
Citatione MLA (9a ed.)Destrée, Jules. Popular Arts and Workers' Spare Time. International Labour Organization, 1933.
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