1. H. C. Hottel and J. B. Howard, An agenda for energy, Technol. Rev. 74, No. 3 (1972).
2. Executive Office of the President, The National Energy Plan, p. 2, Superintendent of Public Documents, U.S. Government Printing Office, Washington, D.C. (1977).
3. R. H. Romer, Energy: An Introduction to Physics, Appendix K, Freeman, San Francisco (1976). Note that energy is the product of power (kilowatts) and time over which the power is produced or consumed.
4. Energy consumption by sector is: residential, 19%; commercial, 15.4%; industrial, 39.6%; transportation, 26%.
5. M. Wilson, A. P. news release in South Bend Tribune, Feb. 19, 1977.