Columbia subject headings:
Nixon, Richard M. (Richard Milhous), 1913-1994.
United States--Foreign relations--1974-1977.
United States--Foreign relations--1977-1981.
United States--Politics and government--1974-1977.
United States--Politics and government--1977-1981.
Harvard subject headings:
Nixon, Richard M. (Richard Milhous), 1913-1994
United States--Foreign relations--1974-1977
United States--Foreign relations--1977-1981
United States--Politics and government--1974-1977
United States--Politics and government--1977-1981
Princeton subject headings:
Nixon, Richard M. (Richard Milhous), 1913-1994.
United States--Foreign relations--1974-1977.
United States--Foreign relations--1977- .
United States--Politics and government--1974-1977.
United States--Politics and government--1977-1981.