Books by Wisconsin. Division of State Energy:
Books in the extended shelves:
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Wisconsin. Division of State Energy: Residential conservation service state plan (Wisconsin Division of State Energy, Dept. of Administration, 1981), also by Jim McCambridge, University of Wisconsin--Extension. Dept. of Engineering, and Public Service Commission of Wisconsin (page images at HathiTrust)
Find more by Wisconsin. Division of State Energy at your library, or elsewhere.