http://book.klll.cc/ebooks/subject/5538.opds?sort_order=release_date 2025-08-05T09:40:09Z Books about Engineering (sorted by release date) Free eBooks since 1971. Project Gutenberg https://book.klll.cc webmaster@gutenberg.org https://book.klll.cc/gutenberg/favicon.ico 25 1 2025-08-05T09:40:09Z https://book.klll.cc/ebooks/subject/5538.opds?sort_order=title Sort Alphabetically by Title 2025-08-05T09:40:09Z https://book.klll.cc/ebooks/subject/5538.opds?sort_order=downloads Sort by Popularity 2025-08-05T09:40:09Z https://book.klll.cc/ebooks/69084.opds Engineers and their triumphs F. M. Holmes 2025-08-05T09:40:09Z https://book.klll.cc/ebooks/24681.opds Opportunities in Engineering Charles M. Horton