Hardrock
Subtitle: about mining
By: by Fred E. Johnson.
Edition: 1st ed.
Publisher: Tombstone Printers
Published: 1991
Place of publication: Tombstone, Ariz
Language: eng
Number of pages: 95
Subjects: Johnson, Fred E; Mines and mineral resources -- History; Mining engineering -- Mexico; Mining engineering -- Brazil; Mining engineering -- Philippins; Miners -- Biography