Cohen, J. L. (1929). The incidence of the costs of social insurance. International Labour Organization.
Citazione stile Chigago Style (17a edizione)Cohen, Joseph L. The Incidence of the Costs of Social Insurance. International Labour Organization, 1929.
Citatione MLA (9a ed.)Cohen, Joseph L. The Incidence of the Costs of Social Insurance. International Labour Organization, 1929.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.