@book{7874,
	author = {World Health Organization. and World Meteorological Organization},
	title = {Global solar UV index : a practical guide.},
	publisher = {World Health Organization,},
	year = {2002.},
	address = {Geneva : },
	note = {A joint recommendation of the World Health Organization, World Meteorological Organization, United Nations environment Programme, and the International Commission on Non-Ionizing Radiation Protection.}
}