著者名,書名,版表示,出版者名,出版年,シリーズ名,番号,ISBN,ISSN,URL United Nations. Economic and Social Commission for Asia and the Pacific,"Proceedings of the sixth session of the Committee on Natural Resources : incorporating the triennial review of mineral development activities in the ESCAP region, 1976-1978",,United Nations,1980,Mineral resources development series,,,,https://cir.nii.ac.jp/crid/1130000794146639104