Não informado. (2001). Ecological Engineering: The journal of ecotechnology. Elsevier Science.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Ecological Engineering: The Journal of Ecotechnology. Oxford, Inglaterra: Elsevier Science, 2001.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Ecological Engineering: The Journal of Ecotechnology. Elsevier Science, 2001.
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