Columbia subject headings:
Baudelaire, Charles, 1821-1867--Political and social views.
Baudelaire, Charles, 1821-1867. Cygne.
Harvard subject headings:
Baudelaire, Charles, 1821-1867--Political and social views.
Baudelaire, Charles, 1821-1867. Cygne.
Princeton subject headings:
Baudelaire, Charles, 1821-1867--Political and social views.
Baudelaire, Charles, 1821-1867. Cygne.