| Publication Type: | Journal Article |
| Year of Publication: | 1925 |
| Authors: | J. H. F. Umbgrove |
| Journal: | Leidse Geologische Mededelingen |
| Volume: | 1 |
| Pagination: | 83 - 126, pl. 8-11 |
| Date Published: | 1925/// |
| URL: | http://sdrv.ms/15QWFX2 |
| Publication Type: | Journal Article |
| Year of Publication: | 1925 |
| Authors: | J. H. F. Umbgrove |
| Journal: | Leidse Geologische Mededelingen |
| Volume: | 1 |
| Pagination: | 83 - 126, pl. 8-11 |
| Date Published: | 1925/// |
| URL: | http://sdrv.ms/15QWFX2 |