| 000 | 00451 a2200145 4500 | ||
|---|---|---|---|
| 080 |
_a577.4:551.481.1 _bS 422 M |
||
| 245 | 1 |
_aScope working Group on man-made lakes _bMan-made lakes as modified ecosystems |
|
| 260 |
_aParis _bInternational Council of Scietific Unions _c1972 |
||
| 650 | _aMan-made Lakes | ||
| 650 | _aEcosystems | ||
| 700 | _aScientific Communnity on Problems of the Environment | ||
| 100 |
_a _d |
||
| 300 | _a75 p. | ||
| 901 | _a122000 | ||
| 999 |
_c70974 _d70974 |
||