TY  - BOOK
AU  - Welch,E.B.
AU  - Lindell,T.
TI  - Ecological effects of waste water
SN  - 0521224950.
AV  - DUCE QH545.S49 W44 
PY  - 1980///
CY  - Cambridge [Eng.], New York
PB  - Cambridge University Press
KW  - Sewage
KW  - Environmental aspects
N1  - Includes bibliographical reference and index; Includes bibliographical reference and index
ER  -