Columbia subject headings:
Harvard subject headings:
Political violence--Germany.
Political violence--Israel.
Political violence--United States
Violence--Germany--Psychological aspects.
Violence--Israel--Psychological aspects.
Violence--United States--Psychological aspects.
Princeton subject headings:
Political violence--Germany.
Political violence--Israel.
Political violence--United States.
Violence--Germany--Psychological aspects.
Violence--Israel--Psychological aspects.
Violence--United States--Psychological aspects.