Παρόμοια τεκμήρια

• Report of the United Nations conference on environment and development : : Rio de Janeiro, 3-14 June 1992 /
  Έκδοση: (1993)
• Proceedings of the conference /
  Έκδοση: (1993)
• United Nations Conference on the Application of Science and Technology for the Benefit of the Less Developed Areas.
  Έκδοση: (1963)
• Nations of the earth report : United Nations conference on environmental and development : national reports summaries /
  Έκδοση: (1992)
• United Nations Conference on the application of science and technology for the benefit of the less developed areas : list of papers /
  Έκδοση: (1963)