John E. Gray, Robert W. Fri, Toyoaki Ikuta, Donald L. Guertin, Takso Tomitate, Donald W. Guertin, Chikyū Sangyō Bunka Kenkyūjo, Resources for the Future, Atlantic Council of the United States, Nihon Enerugī Keizai Kenkyūjo, Enerugī Sōgō Suishin Iinkai (Japan) · First published 1991
