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| 008 | 140223b1984 xxu||||| |||| 00| 0 eng d | ||
| 041 | _aEnglish | ||
| 100 | _a:UN:ECONOMIC COMMISSION FOR EUROPE,GENEVA | ||
| 245 | _aEFFICIENT USE OF ENERGY SOURCES IN MEETING HEAT DEMAND | ||
| 260 |
_aNY _bUN _c1984 |
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| 650 |
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| 906 | _a:UN | ||
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