Columbia subject headings:
Tolstoy, Leo, graf, 1828-1910--Correspondence.
Tolstoy, Leo, graf, 1828-1910--Friends and associates.
Harvard subject headings:
Tolstoy, Leo, graf, 1828-1910--Correspondence.
Tolstoy, Leo, graf, 1828-1910--Friends and associates.
Princeton subject headings:
Tolstoy, Leo, graf, 1828-1910--Correspondence.
Tolstoy, Leo, graf, 1828-1910--Friends and associates.