APA-referens (7:e uppl.)
International Energy Agency, Organisation for Economic Co-operation and Development, & ProQuest (Firm). (2008). Natural gas market review. OECD/IEA.
Chicago-referens (17:e uppl.)
International Energy Agency, Organisation for Economic Co-operation and Development, och ProQuest (Firm). Natural Gas Market Review. Paris: OECD/IEA, 2008.
MLA-referens (9:e uppl.)
International Energy Agency, et al. Natural Gas Market Review. OECD/IEA, 2008.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.