APA (7 वां संस्करण) प्रशस्ति पत्र
Organisation for Economic Co-operation and Development, International Energy Agency, & ProQuest (Firm). (2008). World energy outlook 2008. OECD/IEA.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र
Organisation for Economic Co-operation and Development, International Energy Agency, और ProQuest (Firm). World Energy Outlook 2008. Paris: OECD/IEA, 2008.
एमएलए (9वां संस्करण) प्रशस्ति पत्र
Organisation for Economic Co-operation and Development, et al. World Energy Outlook 2008. OECD/IEA, 2008.
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