http://book.klll.cc/ebooks/subject/33610.opds 2025-11-18T11:04:41Z Books about Mineralogy -- Missouri Free eBooks since 1971. Project Gutenberg https://book.klll.cc webmaster@gutenberg.org https://book.klll.cc/gutenberg/favicon.ico 25 1 2025-11-18T11:04:41Z https://book.klll.cc/ebooks/59737.opds The Common Rocks and Minerals of Missouri W. D. Keller