A WORLD OF DIFFERENCE. New York: Ballantine Books, . Small octavo, pictorial wrappers. First U.S. edition. Ballantine Books U2213. A tale of the future in which the World Federation uses behavioral science to control its citizens, but needs and maintains destructive weaponry as a defense against those who might rebel against the system. Published earlier in the UK by Ward, Locke in 1955. Clarke, Tale of the Future (1978), p. 103. Sargent, British and American Utopian Literature, 1516-1985, Additions. Reginald 03315. A fine copy. (#158241).
"First Printing June 1964" on copyright page.