TY  - BOOK
AU  - Eckenfelder, W. Wesley
TI  - Activated sludge process design and control : theory and practice
SN  - 9780877628897
U1  - 628.354 ECK 
PY  - 1992///
CY  - Lancaster
PB  - Technomic Pub. Co
KW  - Factory and trade waste - Purification
ER  -