Não informado. (1991). Annual Review of Energy and the Environment. Annual Reviews.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Annual Review of Energy and the Environment. Palo Alto, Calif: Annual Reviews, 1991.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Annual Review of Energy and the Environment. Annual Reviews, 1991.
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