| 000 | 00399 a2200121 4500 | ||
|---|---|---|---|
| 008 | 180926b xxu||||| |||| 00| | ||
| 100 | _a John A. Downing | ||
| 245 |
_aA manual on methods for the assessment of secondary productivity in fresh water / _c John A. Downing and Frank H. Rigler |
||
| 260 |
_aLondon _bBLACKWELL PUBLICATIONS _c1984 |
||
| 300 | _a501p. | ||
| 700 | _a Frank H. Rigle | ||
| 942 |
_2ddc _cBK |
||
| 999 |
_c7093 _d7093 |
||