| 000 | 00335 a2200109 4500 | ||
|---|---|---|---|
| 008 | 180721b xxu||||| |||| 00| | ||
| 100 | _9Hellawell , J.M | ||
| 245 |
_aBiological indicators of fresh water poution and nvironmental management _cHellawell , J.M |
||
| 260 |
_aNetherlands _bSpringer _c1986 |
||
| 300 | _aXIIII, 586,P | ||
| 942 |
_2ddc _cBK |
||
| 999 |
_c6660 _d6660 |
||