| 000 | 00342nam a22001097a 4500 | ||
|---|---|---|---|
| 999 |
_c2253 _d2253 |
||
| 020 | _a92-5-101112 | ||
| 082 | _aCir. 639.31 C641 c1981 | ||
| 245 | _aSimple Methods for aquaculture: water for freshwater fish culture | ||
| 260 |
_aUN: _bFood and Agriculture Organization of the United Nations, _cC1981. |
||
| 300 | _a111p.: ill.; 214cm | ||
| 942 | _cBK | ||