Classificazione LCZ40.F33
⮑ Z4-115.5. Books (General). Writing. Paleography
⮑ Z40-104.5. Writing
Opere scelte (2,322 totale)
- Codes, Ciphers and Other Cryptic and Clandestine Communication: 400 Ways to Send Secret Messages from Hieroglyphs to the Internet di Fred B. Wrixon