http://book.klll.cc/ebooks/author/45010.opds 2025-08-14T18:26:52Z Books by Hitt, Parker (sorted by popularity) Free eBooks since 1971. Project Gutenberg https://book.klll.cc webmaster@gutenberg.org https://book.klll.cc/gutenberg/favicon.ico 25 1 2025-08-14T18:26:52Z https://book.klll.cc/ebooks/48871.opds Manual for the Solution of Military Ciphers Parker Hitt