Columbia subject headings:
Harvard subject headings:
Conflict of generations--Europe, Central--History--20th century--Congresses.
Intergenerational relations--Europe, Central--History--20th century--Congresses.
Princeton subject headings:
Conflict of generations--Europe, Central--History--20th century--Congresses.
Intergenerational relations--Europe, Central--History--20th century--Congresses.