Columbia subject headings:
Harvard subject headings:
Center for the Study of the Presidency--History.
Center for the Study of the Presidency.
Hoxie, R. Gordon (Ralph Gordon), 1919-
Hoxie, R. Gordon (Ralph Gordon), 1919-2002.
Princeton subject headings:
Center for the Study of the Presidency--History.
Hoxie, R. Gordon (Ralph Gordon), 1919-2002.