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Water quality in the Merced River above and below the El Portal Sewage Treatment Plant near Yosemite National Park, California, 1975-77 / by Ray J. Hoffman ; prepared in cooperation with the National Park Service (Open-file report ; 76-679)

Water quality in the Merced River above and below the El Portal Sewage Treatment Plant near Yosemite National Park, California, 1975-77 / by Ray J. Hoffman ; prepared in cooperation with the National Park Service (Open-file report ; 76-679)
マイクロ図書
1979<YCA-I 19.76:79-679>
国立国会図書館
  • タイトル標目Open-file report (Geological Survey (U.S.) ) ; 76-679

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