APA-viite (7. p.)
International Energy Agency, Organisation for Economic Co-operation and Development, & ProQuest (Firm). (2008). Natural gas market review. OECD/IEA.
Chicago-viite (17. p.)
International Energy Agency, Organisation for Economic Co-operation and Development, ja ProQuest (Firm). Natural Gas Market Review. Paris: OECD/IEA, 2008.
MLA-viite (9. p.)
International Energy Agency, et al. Natural Gas Market Review. OECD/IEA, 2008.
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