Secret writings: selected works on modern cryptology /
Kahn, David,1930-author.
Erickson, John,1929-2002,former owner.StEdNL
Erickson, Ljubica,former owner.StEdNL
Caption title.
Reprinted from the Bulletin of the New York Public Library, volume 7, number 5,May 1969.
Includes bibliographical references.
John and Ljubica Erickson collection.