TY  - BOOK
AU  - WEF press
ED  - Water Environment Federation.
ED  - Environmental and Water Resources Institute (U.S.)
TI  - Biological nutrient removal (BNR) operation in wastewater treatment plants
T2  - WEF manual of practice
SN  - 0071464158
U1  - 628.357 
PY  - 2006///
CY  - New York
PB  - McGraw-Hill
KW  - Civil engineering
KW  - Sewage
KW  - Purification
KW  - Nutrient removal
N1  - Includes index; "Manual of practice no. 30"--Cover
UR  - http://www.loc.gov/catdir/enhancements/fy0634/2006296118-b.html
UR  - http://www.loc.gov/catdir/enhancements/fy0634/2006296118-d.html
UR  - http://www.loc.gov/catdir/enhancements/fy0634/2006296118-t.html
ER  -