@book{10249,
	title = {The Sex and age distribution of the world populations},
	publisher = {United Nations},
	year = {1997 },
	address = {New York},
	edition = {1996 rev.},
	note = {"ST/ESA/SER.A/162." - "United Nations publication sales no. E.98.XIII.2"-- T.p. verso. - At head of title: Department of Economic and Social Affairs, Population Division }
}