00809oam 2200217z- 450 9910693670803321(CaSebORM)01120100045SI(CKB)3710000000762232(EXLCZ)99371000000076223220230516c2009uuuu -u- -engStart of the digital revolution, SIGSALY : secure digital voice communications in World War IIFort George G. Meade, MdCenter for Cryptologic History, NSAStart of the Digital Revolutionstart of the digital revolution, SIGSALYPeterson R. R1352672United States.BOOK9910693670803321Start of the digital revolution, SIGSALY : secure digital voice communications in World War II3193833UNINA