TY  - GEN
AU  - Edwards, R W
AU  - Garrod, D J
TI  - Conservation and Productivity of Natural Waters
T2  - Symposia of the Zoological Society of London Number 29
SN  - 0126133298
U1  - 578.76 
PY  - 1972///
CY  - New york
PB  - Academic Press
KW  - Aquatic Biology
KW  - Marine Biology
KW  - Aquatic Production
KW  - Aquatic Conservation
ER  -