Columbia subject headings:
Free verse.
French language--Versification.
French poetry--19th century--History and criticism.
French poetry--20th century--History and criticism.
Harvard subject headings:
Free verse.
French language--Versification.
French poetry--19th century--History and criticism
French poetry--20th century--History and criticism
Princeton subject headings:
Free verse.
French language--Versification.
French poetry--19th century--History and criticism.
French poetry--20th century--History and criticism.