Columbia subject headings:
Blue in literature.
French poetry--19th century--History and criticism.
German poetry--History and criticism.
Symbolism of colors in literature.
Harvard subject headings:
Blue in literature.
French poetry--19th century--History and criticism
German poetry--History and criticism
Symbolism of colors in literature.
Princeton subject headings:
Colors in literature.
Poetry, Modern--History and criticism.
Symbolism of colors.