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Proceedings of the forty-ninth Pugwash Conference on Science and World Affairs, Rustenburg, South Africa, 7-13 September 1999 confronting the challenges of the 21st century /
יצא לאור 2001נושאים: An electronic book accessible through the World Wide Web; click to view
אלקטרוני Conference Proceeding ספר אלקטרוני -
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Proceedings of the forty-ninth Pugwash Conference on Science and World Affairs, Rustenburg, South Africa, 7-13 September 1999 confronting the challenges of the 21st century /
יצא לאור 2001נושאים: An electronic book accessible through the World Wide Web; click to view
אלקטרוני Conference Proceeding ספר אלקטרוני