Classification
- WALS
- NDe > Athapaskan
- Glottolog
- Athabaskan Eyak Tlingit > Athabaskan Eyak > Athabaskan > Centralalaska Yukonathabaskan > Gwichin Han
- Ethnologue
- Eyak Athabaskan > Athabaskan > Northernathabaskan
Sources
- Hoijer 1956
- The chronology of the Athapaskan languages. International Journal of American Linguistics 22. 219-232.