Group of 77 (briefing by H.E. Mr. Hama Arba Diallo, Executive Secretary of the Secretariat of the United Nations Convention to Combat Desertification; and on environment and sustainable development issues)
77国集团（《联合国防治荒漠化的公约》秘书处执行秘书哈马·阿尔巴·迪亚洛 先生阁下的简报；环境与可持续发展问题）