1. Thomas B. Cochran, William M. Arkin, and Milton M. Hoenig, Nuclear Weapons Databook, Vol. 1: U.S. Nuclear Farces and Capabilities (Cambridge, Mass.: Ballinger, 1984), pp. 65–67.
2. Thomas B. Cochran et al. Nuclear Weapons Databook, Vol. II: U.S. Nuclear Warhead Production (Cambridge, Mass.: Ballinger, 1987), p. 48.