Columbia subject headings:
Hoover Institution on War, Revolution, and Peace--Catalogs.
Hoover, Herbert, 1874-1964--Archives--Catalogs.
United States--Politics and government--1929-1933--Sources--Bibliography--Catalogs.
World War, 1914-1918--Civilian relief--Sources--Bibliography--Catalogs.
World War, 1939-1945--Civilian relief--Sources--Bibliography--Catalogs.
Harvard subject headings:
Hoover Institution on War, Revolution, and Peace--Catalogs.
Hoover, Herbert, 1874-1964--Archives--Catalogs.
United States--Politics and government--1929-1933--Sources--Bibliography--Catalogs.
World War, 1914-1918--Civilian relief--Sources--Bibliography--Catalogs.
World War, 1939-1945--Civilian relief--Sources--Bibliography--Catalogs.
Princeton subject headings:
Hoover Institution on War, Revolution, and Peace--Catalogs.
Hoover, Herbert, 1874-1964--Archives--Catalogs.
United States--Politics and government--1929-1933--Sources--Bibliography--Catalogs.
World War, 1914-1918--Civilian relief--Sources--Bibliography--Catalogs.
World War, 1939-1945--Civilian relief--Sources--Bibliography--Catalogs.