Columbia subject headings:
Russia--History--Boris Fyodorovich Godunov, 1598-1605.
Russia--History--Time of Troubles, 1598-1613.
Harvard subject headings:
Russia--History--Boris Fyodorovich Godunov, 1598-1605.
Princeton subject headings:
Russia--History--Boris Fyodorovich Godunov, 1598-1605.
Russia--History--Time of Troubles, 1598-1613.