Protokoly 3-go Vserossīĭskago sʺi︠e︡zda Obshchestv vspomnozhenīi︠a︡ chastnomu sluzhebnomu trudu i drugikh odnorodnykh po idei︠e︡ i t︠s︡i︠e︡li, Moskva 1906 g
United States. Congress. Senate. Committee on Appropriations. Subcommittee on Departments of Labor, Health and Human Services, Education, and Related Agencies