Columbia subject headings:
Harvard subject headings:
Group identity--Congresses
Social change--Congresses
Social policy--Congresses
Social psychiatry--Congresses.
War and society--Congresses
War--Psychological aspects
Princeton subject headings:
Group identity--Congresses.
Social change--Congresses.
Social policy--Congresses.
Social psychiatry--Congresses.
War and society--Congresses.
War--Psychological aspects.