| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Geology and metamorphic petrology of part of the Damara Orogen along the lower Swakop River, South West Africa | 978-O-7992-O137-6 (O-7992-O137-5) | 1974 |
E. J. · E. Jacob · R. E. · R.J. · R. Jacob · Roger E. · Roger Jacob