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European Geoparks Coffee Table Book-Global Network of National...
www.globalgeopark.org
· The book contains prefaces of Mr Koichiro Matsuura Director-General of UNESCO and Mr Walter Erdelen, Assistant Director-General of the ...
Scientists call for 'sustainable development teaching' - SciDev.Netwww.scidev.net › Home › Networks
www.scidev.net
· Walter Erdelen, assistant director-general for natural sciences at the United Nations Educational, Scientific and Cultural Education ...
UNESCO Science Scholarship Winners Announced | Scoop News
www.scoop.co.nz
UNESCO Assistant Director-General Walter Erdelen, who is visiting New Zealand from UNESCO headquarters in Paris, presented the scholarships to the students at Parliament
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