AMERICAN BLACK CHAMBER
ISBN-10:
0345298675
ISBN-13:
9780345298676
Author(s): Herbert o.yardley
Edition: First Paperback Edition
Released: Aug 12, 1981
Publisher: Ballantine Books
Format: Mass Market Paperback, 256 pages
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Description:
Looks at an era in American cryptography by detailing the top secret activities of a group of code breakers charged with deciphering military and diplomatic communiques from 1917-1929
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