http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
εκπαίδευση των Ελλήνων μαθητών στην ΕΣΣΔ (1917-1938) =
Educating the greek students of USSR (1917-1938) : propaganda and ideological guidance