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| 020 | _a0-86010-439-7 | ||
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_aBD-Dh-BPI _cBD-Dh-BPI |
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_aPublished in co-operation with the United Nations by Graham & Trotman Limited _91521 |
||
| 245 | _aImproved Techniques for the Extraction of primary Forms of Energy | ||
| 300 | _a194 page | ||
| 700 |
_aPublished in co-operation with the United Nations by Graham & Trotman Limited _91521 |
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| 942 |
_2ddc _cBK _n0 |
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| 999 |
_c1769 _d1769 |
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