(1931). An enquiry into the conditions of the workers in China. International Labour Organization.
Citazione stile Chigago Style (17a edizione)An Enquiry into the Conditions of the Workers in China. International Labour Organization, 1931.
Citatione MLA (9a ed.)An Enquiry into the Conditions of the Workers in China. International Labour Organization, 1931.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.