Jenks, W. Encyclopaedia of occupational health and safety. International Labour Office.
Cita Chicago Style (17a ed.)Jenks, Wilfred. Encyclopaedia of Occupational Health and Safety. Geneva: International Labour Office.
Cita MLA (9a ed.)Jenks, Wilfred. Encyclopaedia of Occupational Health and Safety. International Labour Office.
Precaución: Estas citas no son 100% exactas.