| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Mining methods & equipment | 978-0-07-039794-1 (0-07-039794-5) | 1980 |
| The Profitable Small Mine: Prospecting to Operation | 978-0-07-606895-1 (0-07-606895-1) | 1984 |
Köhler Siegfried (Komponist) und Heinrich (Verfasser) Hoffmann