ebrary, Inc. (2001). Guidelines on occupational safety and health management systems. ILO.
Citazione stile Chigago Style (17a edizione)ebrary, Inc. Guidelines on Occupational Safety and Health Management Systems. Geneva: ILO, 2001.
Citatione MLA (9a ed.)ebrary, Inc. Guidelines on Occupational Safety and Health Management Systems. ILO, 2001.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.