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The Cost of clean water and its economic impact.

The Cost of clean water and its economic impact.
Paper図書
U.S. Dept. of the Interior, Federal Water Pollution Control Administration; for sale by the Supt. of Docs., U.S. G.P.O.1969.<EG271-1>
National Diet Library
  • Subject HeadingWater -- Pollution -- Economic aspects -- United States -- Periodicals.

The economics of clean water.

The economics of clean water.
Paper図書
U.S. Dept. of the Interior, Federal Water Pollution Control Administration1970-<NA217-63>
National Diet Library
  • Subject Heading...- Periodicals. Pollution -- Economic aspects -- United States -- Periodicals.

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