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      <marc:subfield code="a">"This report is to provide a frame of reference based on the practical problems and research needs of the industry concerned with the treatment and disposal of wastewater and the provision of suitably treated water for municipal and industrial water supplies. It concentrates on the physical situation of the Great Lakes and interconnecting waterways, where the problems encountered are in many ways very different from those associated with other water sources"--Abstract.</marc:subfield>
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      <marc:subfield code="q">PDF</marc:subfield>
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