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World Health Organization ,  World Meteorological Organization ,  United Nations Environment Programme ,  International Commission on Non-Ionizing Radiation Protection ,  [Global solar UV index : a practical guide]

World Health Organization ,  World Meteorological Organization ,  WHO/WMO Consultation on Air Quality Monitoring in Urban and Industrial Areas (1976 : Geneva, Switzerland) ,  [Air monitoring programme design for urban and industrial areas / prepared by the secretariats of the World Health Organization and the World Meteorological Organization, following a WHO/WMO Consultation on Air Quality Monitoring in Urban and Industrial Areas, Geneva, 1976]

World Health Organization ,  World Meteorological Organization ,  United Nations Environment Programme ,  International Commission on Non-Ionizing Radiation Protection ,  [Global solar UV index : a practical guide]

World Health Organization ,  World Meteorological Organization ,  WHO/WMO Consultation on Air Quality Monitoring in Urban and Industrial Areas (1976 : Geneva, Switzerland) ,  [Air monitoring programme design for urban and industrial areas / prepared by the secretariats of the World Health Organization and the World Meteorological Organization, following a WHO/WMO Consultation on Air Quality Monitoring in Urban and Industrial Areas, Geneva, 1976]