Columbia subject headings:
Blue collar workers--Germany--Social conditions.
Lifestyles--Germany.
White collar workers--Germany--Social conditions.
Harvard subject headings:
Blue collar workers--Germany--Interviews.
Social psychology.
Social status--Germany.
White collar workers--Germany--Interviews.
Working class--Germany--Attitudes.
Working class--Germany--Interviews.
Princeton subject headings:
Blue collar workers--Germany--Social conditions.
Lifestyles--Germany.
White collar workers--Germany--Social conditions.