Dyfyniad APA

Tor Dm̀aso & BSI Standards publications. Occupational health and safety management systems , OHSAS 18001,1999.

Dyfyniad Arddull Chicago

Tor Dm̀aso and BSI Standards publications. Occupational Health and Safety Management Systems , OHSAS 18001,1999.

Dyfyniad MLA

Tor Dm̀aso and BSI Standards publications. Occupational Health and Safety Management Systems , OHSAS 18001,1999.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.