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      <marc:subfield code="a">Atmospheric loading of the Upper Great Lakes / </marc:subfield>
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      <marc:subfield code="a">[Burlington, Ont.] : </marc:subfield>
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      <marc:subfield code="c">December 1975.</marc:subfield>
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      <marc:subfield code="a">v. 1. Summary report -- v. 2. Main text -- v. 3. Appendixes.</marc:subfield>
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      <marc:subfield code="a">"The three volumes of this report constitute a study of the atmospheric loadings of the Upper Great Lakes which is a portion of the International Joint Commission Study of Pollution Problems of Lake Huron and Lake Superior. This summary volume presents the principal findings of the report. Volume 2, Main Text, contains descriptions of methodologies, assumptions, results, accuracies and interpretations. Volume 3, Appendixes, contains the relevant data used"-Foreword [v. 1].</marc:subfield>
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