Description:
USA: American Cryptogram Association, 1960. 1st . Paper Back. Near Fine/No Jacket. 12mo - over 6¾" - 7¾" tall. 46pp.; SC staple-bound; lt.blue w/blk.; slight rub w/sun on spine; PON? inside cover; clean,tight pgs. "A Series Edited by Members of The American Cryptogram Association" Contents: The Playfair Cipher & The Four Square Cipher.
Digraphic substitution: The Playfair cipher, the four square cipher (Practical cryptanalysis) by Bowers, William Maxwell - 1960
by Bowers, William Maxwell
Digraphic substitution: The Playfair cipher, the four square cipher (Practical cryptanalysis)
by Bowers, William Maxwell
- Used
- very good
- Paperback
American Cryptogram Association, 1960. Paperback. Very Good. 12mo 6.75 - 7.75'' tall. Paperback. Book Condition: Very Good. American Cryptogram Association, 1960. 46 pages. Nice Firm copy ! Previous owner ink stamp. Small copy. Size: 12mo 6.75 - 7.75'' tall. Cryptography Science/Nature::Mathematics Games Amusement::Math Puzzles Etc. 6636 6636
- Bookseller BookScene (US)
- Format/Binding Paperback
- Book Condition Used - Very Good
- Binding Paperback
- Publisher American Cryptogram Association
- Date Published 1960
- Size 12mo 6.75 - 7.75'' tall
- Keywords Cryptography Science/Nature::Mathematics Games Amusement::Math Puzzles Etc.
- Size 12mo 6.75 - 7.75\'\' tall