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 Commission for Europe and United Nations,Best practice guidance for effective methane recovery and use from abandoned coal mines,,United Nations,2020,ECE energy series,,9789211172164,,https://cir.nii.ac.jp/crid/1130285378425475968