Passive solar energy : hearing before the Subcommittee on Oversight and Investigations of the Committee on Interstate and Foreign Commerce, House of Representatives, Ninety-fifth Congress, second session, August 11, 1978.
United States.Congress.House.Committee on Interstate and Foreign Commerce.Subcommittee on Oversight and Investigations.
Washington : U.S. Govt. Print. Off.,
1979.
"Serial no. 95-153."
Solar energy
Solar heating.