Columbia subject headings:
Ball, George W.
Statesmen--United States--Biography.
United States--Foreign relations--1933-1945.
United States--Foreign relations--1945-1989.
Harvard subject headings:
Ball, George W.
Statesmen--United States--Biography.
United States--Foreign relations--1933-1945.
United States--Foreign relations--1945-
Princeton subject headings:
Ball, George W.
Statesmen--United States--Biography.
United States--Foreign relations--1933-1945.
United States--Foreign relations--1945-1989.