Columbia subject headings:
Administrative agencies--United States--Reorganization--History--20th century.
Executive departments--United States--Reorganization--History--20th century.
Presidents--United States--History--20th century.
United States--Politics and government--20th century.
Harvard subject headings:
Administrative agencies--United States--Reorganization--History--20th century.
Executive departments--United States--History--20th century.
Executive departments--United States--Reorganization--History--20th century.
Presidents--United States--History--20th century
United States--Politics and government--20th century.
Princeton subject headings:
Administrative agencies--United States--Reorganization--History--20th century.
Executive departments--United States--Reorganization--History--20th century.
Presidents--United States--History--20th century.
United States--Politics and government--20th century.