Spellman, F. R. (2003). Handbook of water and wastewater treatment plant: Operations. Lewis.
Cita Chicago (17th ed.)Spellman, Frank R. Handbook of Water and Wastewater Treatment Plant: Operations. Boca Raton: Lewis, 2003.
Cita MLA (9th ed.)Spellman, Frank R. Handbook of Water and Wastewater Treatment Plant: Operations. Lewis, 2003.
Atenció: Aquestes cites poden no estar 100% correctes.