(1930). Placing and unemployment insurance in Germany in 1929. International Labour Organization.
Citazione stile Chigago Style (17a edizione)Placing and Unemployment Insurance in Germany in 1929. International Labour Organization, 1930.
Citatione MLA (9a ed.)Placing and Unemployment Insurance in Germany in 1929. International Labour Organization, 1930.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.