Patkanov, S Staticheskiia dannyia pokazyvaiushchiia plemmennoi sostav naseleniia Sibiri [Statistical Accounts of the ethnic Composition of the Population of Siberia and Distribution of the Natives by Language]. St. Petersburg 1912
First edition Three volumes, 8vo, pp.174; 431; (433)-999 , text in Russian. Report of the Imperial Russian Geographical Society, Department of Statistics, Vol.XI, parts 1-3. A very good set in original wrappers.

The results of the census of the population of Russian undertaken in 1897