Briggs, D. J. (2003). Making a difference: Indicators to improve children's environmental health. World Health Organization.
Chicago-referens (17:e uppl.)Briggs, David J. Making a Difference: Indicators to Improve Children's Environmental Health. Geneva: World Health Organization, 2003.
MLA-referens (8:e uppl.)Briggs, David J. Making a Difference: Indicators to Improve Children's Environmental Health. World Health Organization, 2003.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.