TY  - BOOK
AU  - Curds,Colin Robert
AU  - Hawkes,H.A.
TI  - Ecological aspects of used-water treatment
SN  - 0121995018 :
U1  -  628.16 
PY  - 1975///
CY  - London
PB  - Academic Press
KW  - Sewage
KW  - Microbiology
KW  - Purification
KW  - Biological treatment
KW  - Freshwater ecology
N1  - Library has Vol.1; Vol. 1. The organisms and their ecology.--v. 2. Biological activities and treatment processes.--v. 3. The processes and their ecology
ER  -