Columbia subject headings:
United States--History, Military--20th century--Bibliography.
United States--History--1913-1921--Bibliography.
World War, 1914-1918--United States--Bibliography.
Harvard subject headings:
United States--History, Military--20th century--Bibliography.
United States--History--1913-1921--Bibliography.
World War, 1914-1918--United States--Bibliography of bibliographies.
World War, 1914-1918--United States--Bibliography.
Princeton subject headings:
United States--History, Military--20th century--Bibliography.
United States--History--1913-1921--Bibliography.
World War, 1914-1918--United States--Bibliography.