Columbia subject headings:
Atomic bomb.
United States--Foreign relations--1933-1945.
United States--Foreign relations--1945-1953.
World War, 1939-1945--Diplomatic history.
World politics--1945-1955.
Harvard subject headings:
Atomic bomb
United States--Foreign relations--1933-1945
United States--Foreign relations--1945-1953
World War, 1939-1945--Diplomatic history
World politics--1945-1955
Princeton subject headings:
Atomic bomb.
United States--Foreign relations--1933-1945.
United States--Foreign relations--1945-1953.
World War, 1939-1945--Diplomatic history.
World politics--1945-1955.