TY  - BOOK
AU  - Harper, David
TI  - Eutrophication of freshwaters : principles, problems and restoration
SN  - 0412329700
U1  - 574.52632 
PY  - 1992///
CY  - London
PB  - Chapman & Hall
KW  - Eutrophication
KW  - Lake Renewal
ER  -