Glasstone, Samuel; Dolan, Philip J. (1977). The Effects of Nuclear Weapons (3rd ed.). U.S. Department of Defense, U.S. Atomic Energy Commission. pp. 436–437. ISBN978-0-318-20369-0. (page 436.) 9.107 A radiation dose of 700 rads over a period of 96 hours would probably prove fatal in the great majority of cases.