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A preliminary assessment of national papers as a basis for UNCSTD conference programming / by Jürg Mahner.
- United Nations institute for training and research (UNITAR),
- 1979.
- New York :
-
Science and technology for development = La science et la technique au service du développement = Ciencia y tecnologÃa para el desarrollo / Department of conference services. Translation division. Documentation and terminology section.
- United Nations,
- 1979.
- New York :