1. UNICEF
. Childhood Lead Poisoning. Information for Advocacy and Action. UNEP-UNICEF Information Series. Available: http://www.unicef.org/programme/wes/ pubs/lead/lead.htm [cited 2 October 2000].
2. CDC. Preventing Lead Poisoning in Young Children. Atlanta GA:Centers for Disease Control and Prevention 1991.
3. WHO. Air Quality Guidelines. Available: http://www.who.int/ peh/air/Airqualitygd.htm [cited 2 October 2000].
4. Lead and child development