International Energy Agency. (2015). Key world energy statistics 2015. Organisation for Economic Co-operation and Development.
芝加哥风格引文International Energy Agency. Key World Energy Statistics 2015. Paris: Organisation for Economic Co-operation and Development, 2015.
MLA引文International Energy Agency. Key World Energy Statistics 2015. Organisation for Economic Co-operation and Development, 2015.
警告：这些引文格式不一定是100％准确.