000 | 00639nam a22001697a 4500 | ||
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008 | 230329b |||||||| |||| 00| 0 eng d | ||
020 | _a0-860100-439-7 | ||
040 |
_aNational Science Library _cNational Science Library |
||
080 |
_a662.6/.7(082.2) _bM3 |
||
245 |
_aimproved techniques for the extraction of primary forms of energy _c/ A Seminar of the United Nations Economics Commission for Europe (Vienna 10-14 November 1980) |
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260 |
_aGraham: _bCo-Operation with the United Nation, |
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300 | _avii, 194p. | ||
650 | _aChemical technology | ||
653 | _aFossil fuels | ||
653 | _aHydrocarbons | ||
942 |
_2udc _cREF |
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999 |
_c16711 _d16711 |