http://book.klll.cc/ebooks/subject/5661.opds 2025-08-06T00:09:11Z Books about Mines and mineral resources (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 2025-08-06T00:09:11Z https://book.klll.cc/ebooks/subject/5661.opds?sort_order=title Sort Alphabetically by Title 2025-08-06T00:09:11Z https://book.klll.cc/ebooks/subject/5661.opds?sort_order=release_date Sort by Release Date 2025-08-06T00:09:11Z https://book.klll.cc/ebooks/52466.opds The Subterranean World G. Hartwig 2025-08-06T00:09:11Z https://book.klll.cc/ebooks/38903.opds The Business of Mining Arthur J. Hoskin 2025-08-06T00:09:11Z https://book.klll.cc/ebooks/26697.opds Principles of Mining: Valuation, Organization and Administration Herbert Hoover 2025-08-06T00:09:11Z https://book.klll.cc/ebooks/57441.opds The Underground World: A mirror of life below the surface Thomas Wallace Knox 2025-08-06T00:09:11Z https://book.klll.cc/ebooks/24762.opds Diggers in the Earth Eva March Tappan 2025-08-06T00:09:11Z https://book.klll.cc/ebooks/71082.opds Political and commercial geology and the world's mineral resources 248 downloads