956 resultados para Water quality variations


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Prepared for the U.S. Coast Guard, Office of Research and Development, Washington, D.C. under contract no. DOT-CG-51122-A.

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Three maps on 3 folded leaves in pocket.

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Prepared by American Society of Planning Officials under contract no. 68-01-1969.

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v. 1. Municipal investment needs.--v. 2. Cost effectiveness and clean water.

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Mode of access: Internet.

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"EPA 814/B-96-004."

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Vols. for 1981-198 issued in 2 or more pts.

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"This report marks the first anniversary of the Clean Water Action plan".

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Some parts are composed chiefly of statistical tables.

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Includes bibliographies.