TY  - BOOK
AU  - Dobson, Mike  .
TI  - Ecology of aquatic systems / 
SN  - 0-582-29804-0
U1  - G:5 
PY  - 1998///
CY  - England : 
PB  - Addison Wesley Longman Limited , 
KW  -  Ecology- Aquatic systems
ER  -