TY  - BOOK
TI  - Biological nutrient removal (BNR) operation in wastewater treatment plants
SN  - 9780071464154
U1  - 628.357 WEF 
PY  - 2006///
CY  - New York
PB  - McGraw-Hill
KW  - Sewage - Purification - Nutrient removal
ER  -