Columbia subject headings:
Kievan Rus--History--862-1237.
Lavrentʹevskai︠a︡ letopisʹ--Concordances.
Harvard subject headings:
Kievan Rus--History.
Lavrentʹevskai︠a︡ letopisʹ--Concordances.
Russia--History--To 1533.
Princeton subject headings:
Lavrentʹevskai︠a︡ letopisʹ--Concordances.
Russia--History--862-1237.