Tweedy, J. T. M. C. C. (1997). Healthcare hazard control and safety management. Health Care safety Management.
Chicago-referens (17:e uppl.)Tweedy, James T. M.S. CHCM CHSP. Healthcare Hazard Control and Safety Management. Maryland: Health Care safety Management, 1997.
MLA-referens (8:e uppl.)Tweedy, James T. M.S. CHCM CHSP. Healthcare Hazard Control and Safety Management. Health Care safety Management, 1997.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.