Columbia subject headings:
Byzantine Empire--Relations--Kievan Rus.
Islamic Empire--History--750-1258.
Islamic Empire--Relations--Kievan Rus.
Kievan Rus--History--862-1237.
Kievan Rus--Relations--Byzantine Empire.
Kievan Rus--Relations--Islamic Empire.
Harvard subject headings:
Islamic Empire--History--750-1258.
Kievan Rus--History--862-1237.
Muslims--Russia--History.
Princeton subject headings:
Byzantine Empire--Relations--Kievan Rus.
Islamic Empire--History--750-1258.
Islamic Empire--Relations--Kievan Rus.
Kievan Rus--History--862-1237.
Kievan Rus--Relations--Byzantine Empire.
Kievan Rus--Relations--Islamic Empire.