TY  - BOOK
AU  - Mason,C.F.
TI  - Biology of freshwater pollution
SN  - 0582247322
AV  - QH545.W3 M37 1996
PY  - 1996///
CY  - Harlow, Essex, England
PB  - Longman
KW  - Water
KW  - Pollution
KW  - Freshwater biology
ER  -