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3
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The aging of populations and its economic and social implications / Department of economic and social affairs.
- UN. Department of economic and social affairs,
- 1956.
- New York, NY :
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Methods for population projections by sex and age / Department of economic and social affairs.
- UN. Department of economic and social affairs,
- 1956.
- New York, NY :
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Assistance to the needy in less-developed areas : a survey of methods of administering assistance in various countries / United Nations, Department of economic and social affairs.
- UN. Department of economic and social affairs,
- 1956.
- New York :