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Indirect techniques for demographic estimation / Population division, Department of international economic and social affairs, UN secr. with the Committee on population and demography of the National research council, US National academy of sciences.
- United Nations,
- 1983.
- New York, NY :
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Flood damage prevention and control in China : report of a study tour and workshop in the People's republic of China (16-31 October 1980) / Department of technical co-operation for development.
- United Nations,
- 1983.
- New York, NY :
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Proceedings of the meeting on water resources development in the South Pacific, held at Suva, Fiji, from 14 to 19 March 1983
- 882
- United Nations,
- 1983.
- New York, NY :