Mines and mineral resources — Audiobooks
Diggers in the Earth
by Eva March Tappan
The Underground World: A mirror of life below the surface
by Thomas Wallace Knox
The Business of Mining A brief non-technical exposition of the principles involved in the profitable operation of mines
by Arthur J. (Arthur Joseph) Hoskin
The Subterranean World
by G. (Georg) Hartwig
Principles of Mining: Valuation, Organization and Administration
by Herbert Hoover