@book{190198,
	author = {United Nations Population Fund.},
	title = {State of world population, 2003},
	publisher = {United Nations Population Fund},
	year = {2003.},
	address = {New York},
	note = {"Sales no. E.03.III.H.1"},
	url = {http://www.unfpa.org/swp/2003/pdf/index.htm}
}