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21
Geothermal energy its past, present, and future contributions to the energy needs of man
Foilsithe / Cruthaithe 1983LEABHAR -
22
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23
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24
Geothermal energy investment decisions and commercial development
Foilsithe / Cruthaithe 1982LEABHAR -
25
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26
Geothermal energy investment decisions and commercial development
Foilsithe / Cruthaithe 1982LEABHAR -
27
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28
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29
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