Economie and social implications of population aging : proceedings
/ of the international symposium on population structure and development, Tokyo,10-12 september 1987; [organized by] united nations, department of international economic and social affairs
. - New York : United nations , 1988
. - VIII-430 p. ; 28 cm.
bibliogr.
Dons divers
338.973.
bibliogr.
Dons divers
338.973.