Columbia subject headings:
Australia--History--Bibliography.
Canada--History--Bibliography.
Commonwealth (Organization)--History--Bibliography.
Commonwealth countries--Bibliography.
Great Britain--History--Bibliography.
United States--History--Bibliography.
Harvard subject headings:
Australia--History--Bibliography.
Canada--History--Bibliography.
Commonwealth of Nations--Bibliography.
Great Britain--History--Bibliography.
United States--History--Bibliography.
Princeton subject headings:
Australia--History--Bibliography.
Canada--History--Bibliography.
Commonwealth countries--Bibliography.
Great Britain--History--Bibliography.
United States--History--Bibliography.