Bernhard, E. (1931). Winter building as a remedy for seasonal unemployment. International Labour Organization.
Citazione stile Chigago Style (17a edizione)Bernhard, Ernst. Winter Building as a Remedy for Seasonal Unemployment. International Labour Organization, 1931.
Citatione MLA (9a ed.)Bernhard, Ernst. Winter Building as a Remedy for Seasonal Unemployment. International Labour Organization, 1931.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.