TY  - BOOK
AU  - C.F. Mason
TI  - Biology of freshwater pollution
SN  - 0-582-45596-0
U1  - 363.7394 
PY  - 1989///
CY  - London
PB  - Longman Scientific and technical
N1  - C.F. Mason: Biology of freshwater pollution.  (Reprint)  London.  Longman Scientific and technical, 1989. 0-582-45596-0--(363.7394MAS)
ER  -