(2016). Energy, transport and environment indicators (2015 ed.). Publications Office of the European Union.
Chicagoスタイル(17版)引用形式Energy, Transport and Environment Indicators. 2015 ed. Luxembourg: Publications Office of the European Union, 2016.
MLA(8版)引用形式Energy, Transport and Environment Indicators. 2015 ed. Publications Office of the European Union, 2016.
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