226 resultados para Sewage disposal in rivers, lakes, etc.


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Bibliography: p. 10.

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"A report on a conference at Zion, Illinois, which was supported by the Research Applications Directorate of the National Science Foundations, grant GI-30971".

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"Prepared by the Committee on Development of Uniform Standards for Sewage Works for the Upper Mississippi and Great Lakes Boards of Public Health Engineers".

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Paper for the National Council for Stream Improvement Stream Analysis Research [Project].

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"EPA-625/6-84-009."