Columbia subject headings:
Presidents--United States--Bibliography.
United States--Politics and government--1933-1945--Bibliography.
United States--Politics and government--1945-1989--Bibliography.
Harvard subject headings:
Presidents--United States--Bibliography.
United States--Politics and government--1933-1945--Bibliography.
United States--Politics and government--1945-1989--Bibliography.
Princeton subject headings:
Presidents--United States--Bibliography.
United States--Politics and government--1933-1945--Bibliography.
United States--Politics and government--1945---Bibliography.