http://book.klll.cc/ebooks/subject/36451.opds 2025-08-21T10:49:50Z Books about Mines and mineral resources -- Illinois (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 2025-08-21T10:49:50Z https://book.klll.cc/ebooks/subject/36451.opds?sort_order=title Sort Alphabetically by Title 2025-08-21T10:49:50Z https://book.klll.cc/ebooks/subject/36451.opds?sort_order=release_date Sort by Release Date 2025-08-21T10:49:50Z https://book.klll.cc/ebooks/65426.opds Industrial Minerals and Metals of Illinois J. E. Lamar 2025-08-21T10:49:50Z https://book.klll.cc/ebooks/66317.opds Inside Illinois: Mineral Resources Illinois State Geological Survey