Jenks, W. Encyclopaedia of occupational health and safety. International Labour Office.
Citazione stile Chigago Style (17a edizione)Jenks, Wilfred. Encyclopaedia of Occupational Health and Safety. Geneva: International Labour Office.
Citatione MLA (9a ed.)Jenks, Wilfred. Encyclopaedia of Occupational Health and Safety. International Labour Office.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.