The A B C of Mining :
Bramble, Charles A.
The A B C of Mining : A Handbook for Prospectors [electronic resource] / Charles A. Bramble - Project Gutenberg, 2014 - Project Gutenberg 45287 .
Public domain in the USA.
Electronic text
The A B C of Mining : A Handbook for Prospectors [electronic resource] / Charles A. Bramble - Project Gutenberg, 2014 - Project Gutenberg 45287 .
Public domain in the USA.
Electronic text