| 000 | 00377nam a2200085Ia 4500 | ||
|---|---|---|---|
| 008 | 130123s9999 xx 000 0 und d | ||
| 082 | _a333 | ||
| 245 | _aNatural Resources & Development : A Biannual Collection Of Recent German Contributions Concerning The Exploration & Exploitation of Natural Resources . No 25-26 | ||
| 260 |
_aTubingen _bInstitute for Scientific Co- Operation _c1987 |
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| 999 |
_c81841 _d81841 |
||