Improving energy efficiency through technology and communications [electronic resource] : hearing before the Subcommittee on Communications, Technology, and the Internet of the Committee on Commerce, Science, and Transportation, United States Senate, One Hundred Eleventh Congress, first [i.e. second] session, February 23, 2010.
Imprint
Washington : U.S. G.P.O. : For sale by the Supt. of Docs., U.S. G.P.O., 2010.
