TY  - BOOK
AU  - Mason,C.F.
TI  - Biology of freshwater pollution
SN  - 0582247322 :
U1  - 577.6 19
PY  - 1996///
CY  - London
PB  - Longman
KW  - Water pollution
KW  - Spines
KW  - Biology
KW  - Fresh water
N1  - ls
N2  - Environment Management
ER  -