Mathematics manual for water and wastewater treatment plant operators - Spellman, Frank R. (Boca Raton, Fla. : CRC Press, 2004)
Includes index
Keywords: Water -- Purification -- Mathematics; Water quality management -- Mathematics; Water -- Purification -- Problems, exercises, etc; Water quality management -- Problems, exercises, etc; Sewage -- Purification -- Mathematics; Sewage disposal -- Mathematics; Sewage -- Purification -- Problems, exercises, etc; Sewage disposal -- Problems, exercises, etc