United States Cryptographic Patents 1861-1989
Cryptologia, July 1991. First Thus. Paper Back. Used - Good. Item #255641
ISBN: 0961056010
Quarto; {8 & 1/4' x 10 & 3/4'}; sunned spine. Foxing top edge, fore-edge and inside first page and verso of front cover. 115 pages.
Used Book
Price: $75.00
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