Columbia subject headings:
Chopin, Frédéric, 1810-1849.
Sand, George, 1804-1876.
Harvard subject headings:
Chopin, Frédéric, 1810-1849
Sand, George, 1804-1876
Princeton subject headings:
Chopin, Frédéric, 1810-1849.
Sand, George, 1804-1876.