(1921). Statistics of unemployment among workers' organisations. International Labour Organization.
Citazione stile Chigago Style (17a edizione)Statistics of Unemployment Among Workers' Organisations. International Labour Organization, 1921.
Citatione MLA (9a ed.)Statistics of Unemployment Among Workers' Organisations. International Labour Organization, 1921.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.