| Author | Spellman, Frank R |
|---|---|
| Title | Mathematics manual for water and wastewater treatment plant operators [electronic resource] / Frank R. Spellman |
| Imprint | Boca Raton, Fla. : CRC Press, c2004 |
| Connect to | http://marc.crcnetbase.com/isbn/9780203502662 |
| Descript | 689 p. : ill |