[25] Gavin, James M., address to the International Bankers Association, Bal Harbour, Fla., Dec. 2, 1958.
[26] Mitchell, Hon. Erwin, in the House of Representatives, June 2, 1960.
[27] Dryden, Dr. Hugh L., Deputy Administrator, NASA, Penrose lecture before the American Philosophical Society, Philadelphia, Apr. 21, 1960.
[28] Missile-Space Directory, Missiles and Rockets, May 30, 1960, pp. 86-359.
[29] Haley, Andrew G., general counsel and past president of the International Astronautical Federation, "Rocketry and Space Exploration." Van Nostrand Co., Princeton, N.J., 1958 p. 156.
[30] Ruzic, Neil P., "The Technical Entrepreneur," Industrial Research, May 1980, p.10.
[31] Bacon, F. T., "The Fuel Cell, Power Source of the Future," New Scientist, Aug. 17, 1959, p.272.
[32] Science Service dispatch, dateline Lynn, Mass., Apr. 25, 1950.
[33] Sharp, James M., "The Application of Fuel Cells in the Natural Gas Industry," Southwest Research Institute, San Antonio, Tex., Mar. 4, 1960, pp. 2-3.
[34] Lear, John, "Towns To Be Lit by Plasma," New Scientist, Nov. 19, 1959, p. 1006.