1
Energy and the environment : Annual Pittsburgh conference 0012: proceedings vol 0001 : Pittsburgh, PA, 30.04.81-01.05.81 /
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2
Energy and the environment : National conference on energy and the environment. 0005 proceedings : Cincinnati, OH, 31.10.77-03.11.77.
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3
Perspectives on energy and the environment. A.
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4
Reducing pollution from selected energy transformation sources : A study.
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1976
5
Umweltschutz in der kommunalen Energieversorgung : Tagung : Saarbrücken, 16.10.1984-17.10.1984
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