TY  - BOOK
AU  - Barnes,D.
AU  - Bliss,P.J.
TI  - Biological control of nitrogen in wastewater treatment
U1  - 628.357 
PY  - 1983///
CY  - London
PB  - E. & F.N. Spon
KW  - Sewage
KW  - Purification
KW  - Nitrogen removal
KW  - Biological treatment
ER  -