http://book.klll.cc/ebooks/subject/31759.opds 2025-09-19T08:24:13Z Books about Machine theory (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 2025-09-19T08:24:13Z https://book.klll.cc/ebooks/55817.opds Automata Old and New Conrad William Cooke