State Publishing House, Ukrainian SSR
In May 1919, the All-Russian Central Executive Committee created the State Publishing House of the RSFSR (Russian Soviet Federative Socialist Republic), Moscow. Thereafter, a system of state-controlled publishing houses were opened across Soviet territories. In Ukraine, the State Publishing House was formed after the Ukrainian Soviet Socialist Republic was absorbed into Soviet Russia via a merging of their respective commissariats. Initially, two mergers brought Ukraine under the sphere of Soviet influence; one merger occurred in June 1919 and a second occurred in December 1920. Ukraine was officially brought into the Soviet Union as a constitute republic in 1922.
Law, G. (1999). Administrative subdivisions of countries: A comprehensive world reference, 1900 through 1998. Jefferson, N.C: McFarland.
encyclopediaofukraine.com (Ukrainian SSR formation)