Columbia subject headings:
Freud, Sigmund, 1856-1939.
Parsons, Talcott, 1902-1979.
Harvard subject headings:
Freud, Sigmund, 1856-1939
Parsons, Talcott, 1902-1979
Princeton subject headings:
Freud, Sigmund, 1856-1939.
Parsons, Talcott, 1902-1979.