Columbia subject headings:
Civilization, Medieval--Sources.
Kievan Rus--History--862-1237--Sources.
Old Norse literature--Sources.
Rusʹ (The Slavic word)
Slavs, Eastern--History--Sources.
Harvard subject headings:
Kievan Rus--History--862-1237--Sources.
Old Norse literature--Sources.
Rusʹ (The Slavic word)
Princeton subject headings: