Energy efficiency technologies and programs [electronic resource] : hearing before the Subcommittee on Science, Technology, and Innovation of the Committee on Commerce, Science, and Transportation, United States Senate, One Hundred Tenth Congress, first session, June 21, 2007.
Imprint
Washington : U.S. G.P.O. : For sale by the Supt. of Docs., U.S. G.P.O., 2012.