Columbia subject headings:
American literature--20th century--History and criticism.
Popular literature--United States--History and criticism.
World War, 1914-1918--Literature and the war.
World War, 1914-1918--Propaganda.
Harvard subject headings:
American literature--20th century--History and criticism
Popular literature--United States--History and criticism.
World War, 1914-1918--Literature and the war
World War, 1914-1918--Propaganda
Princeton subject headings:
American literature--20th century--History and criticism.
Popular literature--United States--History and criticism.
World War, 1914-1918--Literature and the war.
World War, 1914-1918--Propaganda.