Columbia subject headings:
Executive power--United States--History.
Johnson, Andrew, 1808-1875.
Presidents--United States--Biography.
United States--Politics and government--1865-1869.
Harvard subject headings:
Executive power--United States--History
Johnson, Andrew, 1808-1875.
Presidents--United States--Biography
United States--Politics and government--1865-1869.
Princeton subject headings:
Executive power--United States--History.
Johnson, Andrew, 1808-1875.
Presidents--United States--Biography.
United States--Politics and government--1865-1869.