national-cryptologic-museum-library-catalog_page_219

national-cryptologic-museum-library-catalog | page 219 | https://thedailydialectics.com/pdfs/FIOA/national-cryptologic-museum-library-catalog/national-cryptologic-museum-library-catalog.pdf

HILL, LESTER S. HILL, LESTER S. [CRYPTOGRAPHY IN AN ALGEBRAIC ALPHABET [AMERICAN MATHEMATICAL, MONTHLY. AMERICAN MATHEMATICAL, MONTHLY CRYPTOGRAPHY IN AN ALGEBRAIC ALPHABET JUNE/JULY 1929 11929 DISHER (W) CRYPTO SYSTEMS 4, 17, 2104.H646 HILL, LESTER S. CRYPTOGRAPHY IN AN ALGEBRAIC ALPHABET: CERTAIN…