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 "Gerardi, Michael H",Settleability problems and loss of solids in the activated sludge process,,Wiley-Interscience,2002,Environmental Protection magazine series,,0471206946,,https://cir.nii.ac.jp/crid/1130282271734444288