Columbia subject headings:
Boris Fyodorovich Godunov, Czar of Russia, 1551 or 1552-1605.
Russia--History--Boris Fyodorovich Godunov, 1598-1605.
Harvard subject headings:
Boris Fyodorovich Godunov, Czar of Russia, 1551 or 1552-1605.
Russia--History--Boris Fyodorovich Godunov, 1598-1605.
Princeton subject headings:
Boris Fyodorovich Godunov, Czar of Russia, 1551 or 1552-1605.
Russia--History--Boris Fyodorovich Godunov, 1598-1605.