TY  - GEN
AU  - Spellman,Frank R.
TI  - Spellman's standard handbook for wastewater operators
U1  - 628.3 
PY  - 2011///
CY  - Boca Raton
PB  - CRC Press
N1  - 7522 v.1; 7523 v.2; 7524 v.3
ER  -