Columbia subject headings:
Harvard subject headings:
Bolin, Wilhelm, 1835-1924.
Ego (Psychology)
Jodl, Friedrich, 1849-1914.
Manninen, Juha.
Personality
Princeton subject headings:
Bolin, Wilhelm, 1835-1924--Congresses.
Ego (Psychology)--Congresses.
Jodl, Friedrich, 1849-1914--Congresses.
Manninen, Juha--Congresses.
Psychology and philosophy--Congresses.