Organization, I. L. (2009). Safety and health in underground coalmines: ILO code of practice. International Labour Organization.
Citazione stile Chigago Style (17a edizione)Organization, International Labour. Safety and Health in Underground Coalmines: ILO Code of Practice. International Labour Organization, 2009.
Citatione MLA (9a ed.)Organization, International Labour. Safety and Health in Underground Coalmines: ILO Code of Practice. International Labour Organization, 2009.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.