Philip Ligy & Canal NPTEL / Youtube. Activated sludge process modifications.
Cita Chicago (17th ed.)Philip Ligy i Canal NPTEL / Youtube. Activated Sludge Process Modifications.
Cita MLA (9th ed.)Philip Ligy i Canal NPTEL / Youtube. Activated Sludge Process Modifications.
Atenció: Aquestes cites poden no estar 100% correctes.