Florence, P. S. (1924). The forty-eight hour week and industrial efficiency. International Labour Organization.
Citazione stile Chigago Style (17a edizione)Florence, P. Sargant. The Forty-eight Hour Week and Industrial Efficiency. International Labour Organization, 1924.
Citatione MLA (9a ed.)Florence, P. Sargant. The Forty-eight Hour Week and Industrial Efficiency. International Labour Organization, 1924.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.