Tor Dm̀aso & BSI Standards publications. Occupational health and safety management systems , OHSAS 18001,1999.
Cita Chicago (17th ed.)Tor Dm̀aso i BSI Standards publications. Occupational Health and Safety Management Systems , OHSAS 18001,1999.
Cita MLA (9th ed.)Tor Dm̀aso i BSI Standards publications. Occupational Health and Safety Management Systems , OHSAS 18001,1999.
Atenció: Aquestes cites poden no estar 100% correctes.