| 000 | 00515nam a2200133 a 4500 | ||
|---|---|---|---|
| 008 | 121119s1971 xx || ||||||| |d | ||
| 245 | 0 | 0 |
_aProductivity of forest ecosystems : _bproceedings of the Brussels symposium |
| 260 | _c1971 | ||
| 260 | _bUnited Nations Educational, Scientific and Cultural Organization | ||
| 490 | 0 | _aEcology and conservation series | |
| 500 | _a<p>ENV B01423</p><ul><li>Original series title: Ecology and conservation series 4.</li></ul> | ||
| 650 | 7 |
_aFOREST ECOSYSTEMS _2unbist |
|
| 942 | _cBK | ||
| 999 |
_c571 _d571 |
||