Briggs, D. J. (2003). Making a difference: Indicators to improve children's environmental health. World Health Organization.
Cita Chicago Style (17a ed.)Briggs, David J. Making a Difference: Indicators to Improve Children's Environmental Health. Geneva: World Health Organization, 2003.
Cita MLA (8a ed.)Briggs, David J. Making a Difference: Indicators to Improve Children's Environmental Health. World Health Organization, 2003.
Precaución: Estas citas no son 100% exactas.