Bishop, R. A., & Lee, R. A. (1972). Spokane River Cooperative water quality study. Dept. of Ecology.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रBishop, Robert A., और Ronald A. Lee. Spokane River Cooperative Water Quality Study. [Olympia]: Dept. of Ecology, 1972.
एमएलए (8वां संस्करण) प्रशस्ति पत्रBishop, Robert A., और Ronald A. Lee. Spokane River Cooperative Water Quality Study. Dept. of Ecology, 1972.
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