Soltero, R. A., & Nichols, D. G. (1979). The effect of continuous advanced wastewater treatment by the city of Spokane on the trophic status of Long Lake, WA.: Final project report. State of Washington, Dept. of Ecology.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रSoltero, Raymond A., और Donald G. Nichols. The Effect of Continuous Advanced Wastewater Treatment by the City of Spokane on the Trophic Status of Long Lake, WA.: Final Project Report. Olympia, Wash.: State of Washington, Dept. of Ecology, 1979.
एमएलए (8वां संस्करण) प्रशस्ति पत्रSoltero, Raymond A., और Donald G. Nichols. The Effect of Continuous Advanced Wastewater Treatment by the City of Spokane on the Trophic Status of Long Lake, WA.: Final Project Report. State of Washington, Dept. of Ecology, 1979.
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