McMahon, G., & Chatterton, K. (2019). Four types activated sludge system 2.
Chicago Edition CitationMcMahon, Glenda, and Ken Chatterton. Four Types Activated Sludge System 2. 2019.
MLA Edition CitationMcMahon, Glenda, and Ken Chatterton. Four Types Activated Sludge System 2. 2019.
Warning: These citations may not always be 100% accurate.