TY  - BOOK
AU  - Mason,C.F.
TI  - Biology of freshwater pollution
SN  - 0582247322 (pbk) :
PY  - 1996///
CY  - Harlow : 
PB  - Longman, 
KW  - Freshwater biology
KW  - Great Britain
KW  - Water
KW  - Pollution
N1  - Includes bibliographical references and index.
ER  -