Columbia subject headings:
Butterfield, Alexander Porter, 1926---Political activity.
Nixon, Richard M. (Richard Milhous), 1913-1994.
Political corruption--United States.
Watergate Affair, 1972-1974.
Harvard subject headings:
Butterfield, Alexander Porter, 1926-
Nixon, Richard M. (Richard Milhous), 1913-1994
Political corruption--United States
United States--Politics and government--1969-1974.
Watergate Affair, 1972-1974
Princeton subject headings:
Butterfield, Alexander Porter, 1926-
Nixon, Richard M. (Richard Milhous), 1913-1994.
Political corruption--United States.
United States--Politics and government--1969-1974.
Watergate Affair, 1972-1974.