Columbia subject headings:
Harvard subject headings:
Ford, Gerald R., 1913-2006.
Hartmann, Robert Trowbridge, 1917-
Hartmann, Robert Trowbridge, 1917-2008.
United States--Politics and government--1974-1977.
Princeton subject headings:
Ford, Gerald R., 1913-2006.
Hartmann, Robert Trowbridge, 1917-2008.
United States--Politics and government--1974-1977.