Columbia subject headings:
American literature--20th century--History and criticism--Periodicals.
Literature, Modern--20th century--History and criticism--Periodicals.
Poetry--Periodicals.
Harvard subject headings:
Princeton subject headings:
American literature--20th century--History and criticism--Periodicals.
Literature, Modern--20th century--History and criticism--Periodicals.
Periodicals.
Poetry--Periodicals.