Não informado. (2001). Oil Market Report. International Energy Agency.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Oil Market Report. London: International Energy Agency, 2001.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Oil Market Report. International Energy Agency, 2001.
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