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Agenda 21
[ar] جدول أعمال القرن 21
[ast] Programa 21
[bn] এজেন্ডা ২১
[ca] Agenda 21
[cs] Agenda 21
[da] Agenda 21
[de] Agenda 21
[eo] Agendo 21
[es] Programa 21
[et] Agenda 21