Columbia subject headings:
Harvard subject headings:
Categorization (Psychology)--Congresses.
Categorization (Psychology)--History--Congresses.
Concepts--Congresses.
Concepts--History--Congresses.
Conceptualism--Congresses.
Conceptualism--History--Congresses.
Princeton subject headings:
Categorization (Psychology)--Congresses.
Categorization (Psychology)--History--Congresses.
Concepts--Congresses.
Concepts--History--Congresses.
Conceptualism--Congresses.
Conceptualism--History--Congresses.