http://book.klll.cc/ebooks/author/48359.opds?sort_order=downloads 2025-11-18T12:55:36Z Books by Elting, Mary Free eBooks since 1971. Project Gutenberg https://book.klll.cc webmaster@gutenberg.org https://book.klll.cc/gutenberg/favicon.ico 25 1 2025-11-18T12:55:36Z https://book.klll.cc/ebooks/55482.opds Machines at Work Mary Elting 2025-11-18T12:55:36Z https://book.klll.cc/ebooks/55525.opds Trains at Work Mary Elting 2025-11-18T12:55:36Z https://book.klll.cc/ebooks/55476.opds Ships at Work Mary Elting