Não informado. (2012). International Journal of Global Environmental Issues. Inderscience Enterprises.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. International Journal of Global Environmental Issues. Geneve, Suíça: Inderscience Enterprises, 2012.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. International Journal of Global Environmental Issues. Inderscience Enterprises, 2012.
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