Columbia subject headings:
Tolstai︠a︡, S. A. (Sofʹi︠a︡ Andreevna), 1844-1919.
Tolstoy, Leo, graf, 1828-1910.
Harvard subject headings:
Tolstai︠a︡, S. A. (Sofʹi︠a︡ Andreevna), 1844-1919.
Tolstoy, Leo, graf, 1828-1910
Princeton subject headings:
Tolstai︠a︡, S. A. (Sofi︠́a︡ Andreevna), 1844-1919.
Tolstoy, Leo, graf, 1828-1910.