教科文组织总干事伊琳娜·博科娃“防治荒漠化”世界日致辞2015年6月17日
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| Format: | programme and meeting document biblioteca |
| Language: | chi |
| Subjects: | Desertification, Food security, World Day to Combat Desertification and Drought, |
| Online Access: | https://unesdoc.unesco.org/ark:/48223/pf0000233331_chi |
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