Golden, Colo. : Dept. of Energy, [Office of Energy Technology] Solar Energy Research Institute ; Springfield, Va. : for sale by the National Technical Information Service, 1979.
Washington : Dept. of Energy, Office of the Assistant Secretary for Intergovernmental and Institutional Relations, Office of Education, Businessand Labor Affairs, Education Programs Division ; for sale by the Supt. of Docs., U.S. Govt. Print. Off.
Washington : Dept. of Energy [Office of the] Assistant Secretary for Environment ; Springfield, Va. : For sale by the National Technical Information Service, 1979.