1. Centers for Disease Control and Prevention (2006) Website: http://www.bt.cdc.gov/disasters/extremeheat/heat_guide.asp . Accessed 23 March 2006
2. Combined Health District of Montgomery County (2001) The Montgomery County Heat Advisory Plan, 59 pp
3. Combined Health District of Montgomery County (2003) Heat Plan Survey, unpublished document, 7 pp
4. Day N (2002) The hot weather response plan and heat-health alert system in Toronto, unpublished document, 4 pp
5. Kalkstein LS (2002) Description of our heat/health warning systems: their nature and extent and required resources, unpublished document, 31 pp