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 "Eckenfelder, W. Wesley (William Wesley) and Grau, Petr and International Association on Water Pollution Research and Control. Conference",Activated sludge process design and control : theory and practice,,Technomic Pub. Co.,1992,Water quality management library,,0877628890,,https://cir.nii.ac.jp/crid/1130000796397830144