Columbia subject headings:
Adams-Onís Treaty
Florida--History--To 1821.
Spain--Foreign relations--United States.
United States--Foreign relations--Spain.
Harvard subject headings:
Florida--History--Colonial period to 1821.
Florida--History--To 1821
Spain--Foreign relations--United States.
Spain. Treaties, etc. 1819 February 22.
United States--Foreign relations--Spain.
Princeton subject headings: