Organisation for Economic Co-operation and Development, International Energy Agency, & ProQuest (Firm). (2011). Coal: Medium-term market report 2011 : market trends and projections to 2016. OECD/IEA.
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Chicago Style (17th ed.) Zitazioa
Organisation for Economic Co-operation and Development, International Energy Agency, eta ProQuest (Firm). Coal: Medium-term Market Report 2011 : Market Trends and Projections to 2016. Paris: OECD/IEA, 2011.
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MLA (9th ed.) Zitazioa
Organisation for Economic Co-operation and Development, et al. Coal: Medium-term Market Report 2011 : Market Trends and Projections to 2016. OECD/IEA, 2011.
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