International Energy Agency, IEA (Paris, France). (2017). Coal 2017: Analysis and forecasts to 2022. International Energy Agency. https://doi.org/10.1787/coal_mar-2017-en
Citácia podle Chicago (17th ed.)International Energy Agency, IEA (Paris, France). Coal 2017: Analysis and Forecasts to 2022. Paris: International Energy Agency, 2017. https://doi.org/10.1787/coal_mar-2017-en.
Citácia podľa MLA (8th ed.)International Energy Agency, IEA (Paris, France). Coal 2017: Analysis and Forecasts to 2022. International Energy Agency, 2017. https://doi.org/10.1787/coal_mar-2017-en.
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