International Day for the Preservation of the Ozone Layer

International Day for the Preservation of the Ozone Layer

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When:
September 16, 2017 all-day
2017-09-16T00:00:00+03:00
2017-09-17T00:00:00+03:00

http://www.un.org/ga/search/view_doc.asp?symbol=A/RES/49/114

25 Apr 2016 no comments

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