Organisation for economic co-operation and development. (1999). Energy the next fifty years. OECD.
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Chicago Style (17th ed.) Zitazioa
Organisation for economic co-operation and development. Energy the Next Fifty Years. France: OECD, 1999.
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MLA (9th ed.) Zitazioa
Organisation for economic co-operation and development. Energy the Next Fifty Years. OECD, 1999.
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