Columbia subject headings:
American poetry--20th century.
English poetry--20th century.
World War, 1914-1918--Poetry.
World War, 1939-1945--Poetry.
Harvard subject headings:
American poetry--20th century
English poetry--20th century
World War, 1914-1918--Poetry
World War, 1939-1945--Poetry.
Princeton subject headings:
American poetry--20th century.
English poetry--20th century.
Poetry.
World War, 1914-1918--Poetry.
World War, 1939-1945--Poetry.