| 000 | 00447nam a2200133Ia 4500 | ||
|---|---|---|---|
| 008 | 021226t1978 000 0 eng d | ||
| 080 |
_a628.515 : 551.482.2 HEL _b11285 |
||
| 100 | _aHellawell, J.M. | ||
| 245 | 0 |
_aBiological surveillance of rivers : a biological monitoring handbook _h(Book) |
|
| 260 |
_aStevenage, Eng. _bWater Research Centre _c1978 |
||
| 300 |
_a331 p. _c30 cm. |
||
| 650 | _aWater quality biological assessment | ||
| 999 |
_c10465 _d10465 |
||
| 035 | _a11285 | ||