List of References
- von Eckermann , Harry . 1936 . The Loos-Hamra Region . G. F. F , Vol. 58
- von Eckermann , Harry . 1937 . The Jotnian Formation and the sub-Jotnian Unconformity . G. F. F , Vol. 59
- von Eckermann , Harry . 1937 . The Genesis of the Jotnian Sediments . G. F. F , Vol. 59
- Högbom , A. G. 1899 . Om Ragunda-dalens geologi . S. G. G. Ser. C , : 182
- Peacock , M. A. 1931 . Classification of igneous Rock Series . Journ. of Geol , Vol. XXXIX
- Sobral , José M . 1913 . Contributions to the Geology of the Nordingrá Region Upsala