| 000 | 00406 a2200145 4500 | ||
|---|---|---|---|
| 020 | _a0309023173 | ||
| 080 |
_a577.4 _bN277P |
||
| 245 | 1 |
_aProductivity of world ecosystem _bProceedings |
|
| 260 |
_aWashington _bNational Academy of Science _c1975 |
||
| 650 | _aEcosystem | ||
| 100 | _aNational Academy of Science | ||
| 300 | _a166 p. | ||
| 040 | _aIARI, New Delhi | ||
| 901 | _a152689 | ||
| 999 |
_c70743 _d70743 |
||