TY  - BOOK
T1  - Biology of freshwater pollution.
A1  - Mason, C. F.
LA  - English
PP  - New York
PB  - Longman Group Limited
YR  - 1981
UL  - https://tuklas.up.edu.ph/Record/UP-99796217607864112
OP  - 250
CN  - QH545 W3 M37 1981
SN  - 0582455960% 0582455960 0582455960
KW  - Freshwater biology -- Great Britain.
KW  - Water pollution -- Great Britain.
ER  -