@book{6122,
	title = {The sex and age distribution of the world populations : the 1992 revision },
	publisher = {United Nations},
	year = {1993 },
	note = {1992 revision 397 p. : ill. ; 28 cm. "United Nations Publication Sales No. E.93.XIII.3"--T.p. verso "ST/ESA/SER.A/134"--T.p. verso AIY/MR }
}