Biller, D. (1994). Informal gold mining and mercury pollution in Brazil. The World Bank, Policy Research Dept., Public Economic Division.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रBiller, Dan. Informal Gold Mining and Mercury Pollution in Brazil. Washington, D.C: The World Bank, Policy Research Dept., Public Economic Division, 1994.
एमएलए (9वां संस्करण) प्रशस्ति पत्रBiller, Dan. Informal Gold Mining and Mercury Pollution in Brazil. The World Bank, Policy Research Dept., Public Economic Division, 1994.
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