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 "Okamoto, Kensaku","Preparation, analysis and certification of Pond Sediment certified reference material",,National Institute for Environmental Studies,1982,"国立公害研究所研究報告 = Research report from the National Institute for Environmental Studies, Japan",,,,https://cir.nii.ac.jp/crid/1130282273215079296