Columbia subject headings:
Harvard subject headings:
Leisure--Germany--Brandenburg--History.
Social change--Germany--Brandenburg--History.
Social ethics--Germany--Brandenburg--History.
Youth--Germany--Brandenburg--Attitudes.
Youth--Germany--Brandenburg--Politics and government.
Youth--Germany--Brandenburg--Social conditions.
Princeton subject headings:
Leisure--Germany--Brandenburg--History.
Social change--Germany--Brandenburg--History.
Social ethics--Germany--Brandenburg--History.
Youth--Germany--Brandenburg--Attitudes.
Youth--Germany--Brandenburg--Politics and government.
Youth--Germany--Brandenburg--Social conditions.