http://book.klll.cc/ebooks/subject/28692.opds?sort_order=release_date 2025-08-11T09:30:25Z Books about Coal mines and mining (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 2025-08-11T09:30:25Z https://book.klll.cc/ebooks/subject/28692.opds?sort_order=title Sort Alphabetically by Title 2025-08-11T09:30:25Z https://book.klll.cc/ebooks/subject/28692.opds?sort_order=downloads Sort by Popularity 2025-08-11T09:30:25Z https://book.klll.cc/ebooks/69134.opds Coal and the coal mines Homer Greene 2025-08-11T09:30:25Z https://book.klll.cc/ebooks/51106.opds The Mentor: The Story of Coal, vol. 6, Num. 6, Serial No. 154, May 1, 1918 Charles Fitzhugh Talman