Columbia subject headings:
United States--History, Naval--20th century--Bibliography.
United States. Coast Guard--History--20th century--Bibliography.
United States. Navy--History--20th century--Bibliography.
Harvard subject headings:
United States--History, Naval--20th century--Bibliography.
United States. Coast Guard--History--20th century--Bibliography.
United States. Navy--History--20th century--Bibliography.
Princeton subject headings:
United States--History, Naval--20th century--Bibliography.
United States. Coast Guard--History--20th century--Bibliography.
United States. Navy--History--20th century--Bibliography.