Columbia subject headings:
Asia--History--Poetry.
Europe--History--Poetry.
Middle Ages--Poetry.
Slovo o polku Igoreve.
Harvard subject headings:
Asia--History--Poetry.
Europe--History--Poetry.
Middle Ages--Poetry
Slovo o polku Igoreve
Princeton subject headings:
Asia--Relations--Europe.
Europe--History--476-1492.
Europe--Relations--Asia.
Islamic Empire--History--750-1258.
Slovo o polku Igoreve.
Twelfth century.