1
Published 2009
Subjects: ...Industries -- Energy conservation -- Research....
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2
Published 2007
Subjects: ...Industries -- Energy conservation -- Finance....
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3
Published 2011
Subjects: ...Industries -- Energy conservation -- Africa....
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4
by Knopf, F. Carl, 1952-
Published 2012
Subjects: ...Manufacturing industries -- Energy conservation....
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5
Published 2012
Subjects: ...Drying equipment industry -- Energy conservation....
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