Columbia subject headings:
English literature--19th century--History and criticism.
English literature--20th century--History and criticism.
World War, 1914-1918--Poetry.
Harvard subject headings:
English literature--19th century--History and criticism
English literature--20th century--History and criticism
World War, 1914-1918--Poetry
Princeton subject headings:
English literature--19th century--History and criticism.
English literature--20th century--History and criticism.
Poetry.
World War, 1914-1918--Poetry.