| 000 | 00589nam a22001817a 4500 | ||
|---|---|---|---|
| 020 | _a9061937582 | ||
| 082 |
_a574.526 322 _bILM |
||
| 100 |
_aIlmavirta V _97189 |
||
| 245 |
_aLakes and water management _bProceedings of the 30 years jubilee symposium of the finnish limnological society held in helsinki, finland, 22- 23 september 1980 |
||
| 260 |
_aHague _bDr w junk publishers _c1982 |
||
| 300 | _av;222p. | ||
| 650 |
_aLake ecosystem _97190 |
||
| 650 |
_aWater management _97191 |
||
| 650 |
_aFisheries _97192 |
||
| 700 |
_aR I Jones _97193 |
||
| 700 |
_aP E Persson _97194 |
||
| 942 | _cBK | ||
| 999 |
_c243991 _d243991 |
||