International Energy Agency. (2017). Gas 2017: Analysis and forecasts to 2022. OECD.
芝加哥风格引文International Energy Agency. Gas 2017: Analysis and Forecasts to 2022. [Paris, France]: OECD, 2017.
MLA引文International Energy Agency. Gas 2017: Analysis and Forecasts to 2022. OECD, 2017.
警告：这些引文格式不一定是100％准确.