Columbia subject headings:
Alexis, Czarevitch, son of Peter I, Emperor of Russia, 1690-1718--Fiction.
Peter I, Emperor of Russia, 1672-1725--Fiction.
Harvard subject headings:
Alexis, Czarevitch, son of Peter I, Emperor of Russia, 1690-1718--Fiction.
Peter I, Emperor of Russia, 1672-1725--Fiction.
Princeton subject headings: