International Energy Agency, Organisation for Economic Co-operation and Development, & ProQuest (Firm). (2009). Natural gas market review 2009. OECD : International Energy Agency.
芝加哥风格引文International Energy Agency, Organisation for Economic Co-operation and Development, 与 ProQuest (Firm). Natural Gas Market Review 2009. Paris: OECD : International Energy Agency, 2009.
MLA引文International Energy Agency, et al. Natural Gas Market Review 2009. OECD : International Energy Agency, 2009.
警告：这些引文格式不一定是100％准确.