XVIII, 2013 Harold C. Fleming, Stephen L. Zegura, James B. Harrod, JohnD. Bengtson and Shomarka O.Y. Keita - "The Early Dispersions of Homo Sapiens sapiens
Doris. 1974. "Slave of the Haida." Toronto: Macmillan Co. of Canada. Bengtson, JohnD. (2008), "Materials for a Comparative Grammar of the Dene–Caucasian