» MedlinePlus: Legionnaires' Disease Directory of factsheets, articles, and news. http://www.nlm.nih.gov/medlineplus/legionnairesdisease.html
» Medmicro: Legionella Scientific and medical information on the bacteria and the disease it causes. http://gsbs.utmb.edu/microbook/ch040.htm
» OSHA Technical Manual - Legionnaires' Disease Information to assist industrial hygienists in the assessment of work sites for potential Legionnaires' disease. Provides information on disease recognition, investigation procedures to identify probable water sources, and control strategies. http://www.osha.gov/dts/osta/otm/otm_iii/otm_iii_7.html