Não informado. (1967). Water Research. International Association on Water Pollution Research.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Water Research. New York: International Association on Water Pollution Research, 1967.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Water Research. International Association on Water Pollution Research, 1967.
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