|
Norway | |
| Berge, Svein A. (n.d.) Personal communication. |
| Berge, Svein A. (n.d.) Personal communication. |
| |
| Berge, Svein A. (n.d.) Personal communication. |
| Berge, Svein A. (n.d.) Personal communication. |
| Andersen, Frode (1993) Hedrum pukkverk i Lågendalen. STEIN. Nordisk magasin for populær geologi, 20 (4) 236-238 |
| Berge, Svein A. (n.d.) Personal communication. |
| Berge, Svein A. (n.d.) Personal communication. |
| Berge, Svein A. (n.d.) Personal communication. |
| Berge, Svein A. (n.d.) Personal communication. |
| Svein A. Berge collection 1992 + Knut Edvard Larsen collection |
| Knut Edvard Larsen collection # 1832 |
| Knut Edvard Larsen collection # MM-4201 |
| Knut Edvard Larsen collection # MM- 6105 |