@book{1414,
	author = {Schulz, James H. and Centre for Social Development and Humanitarian Affairs (United Nations)},
	title = {The world ageing situation, 1991 /},
	publisher = {United Nations,},
	year = {1991.},
	address = {New York :},
	note = {"ST/CSDHA/14"--T.p. verso.}
}