Atkinson, T. W. (1860). Travels in the regions of the upper and lower Amoor, and the Russian acquisitions on the confines of India and China, with adventures among the mountain Kirghis; and the Manjours, Manyargs, Toungous, Touzemts, Goldi and Gelyaks; the hunting and pastoral tribes. New York: Harper. Retrieved from https://archive.org/details/travelsinregion02atkigoog