Tor Dm̀aso & BSI Standards publications. Occupational health and safety management systems , OHSAS 18001,1999.
Citazione stile Chigago Style (17a edizione)Tor Dm̀aso e BSI Standards publications. Occupational Health and Safety Management Systems , OHSAS 18001,1999.
Citatione MLA (9a ed.)Tor Dm̀aso e BSI Standards publications. Occupational Health and Safety Management Systems , OHSAS 18001,1999.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.