Title: Administrativno-territorialʹnoe delenie Soi︠u︡za SSR i spisok vazhneĭshikh naselennykh punktov s khronologicheskim perechnem postanovleniĭ ob izmenenii granit︠s︡ guberniĭ, oblasteĭ i respublik s 1917 do 1929 g.