Clean coal technology demonstration program : program update 1990. DOE/FE. Estados Unidos. Depto. de Energía. Assistant Secretary for Fossil Energy.; |
Directory of U.S. Coal Technology Export Resources. DOE/FE-0209P. |
Clean coal technology : the new coal era. DOE/FE. Estados Unidos. Depto. de Energía. Assistant Secretary for Fossil Energy.; |
U.S. fossil fuel technologies for developing countries. Costa Rica country packet. Estados Unidos. Depto. de Energía. Assistant Secretary for Fossil Energy. Office of Fossil Energy.; |