| 000 | 00492nam a22001457a 4500 | ||
|---|---|---|---|
| 008 | 230614b |||||||| |||| 00| 0 eng d | ||
| 040 |
_aNational Science Library _cNational Science Library |
||
| 080 |
_aR 5/6:002(1-773)(04) _bL2 |
||
| 245 |
_aScientific and technical information for developing countries _c/ National Academy of Sciences |
||
| 260 |
_aWashington D C: _bNational Academy of Sciences, _c1972 |
||
| 300 | _a79p. | ||
| 650 | _aScience | ||
| 653 | _aGeology | ||
| 942 |
_2udc _cREP |
||
| 999 |
_c43102 _d43102 |
||