Columbia subject headings:
Business students--Germany--Cologne--Social conditions.
Handelshochschule Köln (Germany)--History.
Social surveys--Germany--Cologne.
Harvard subject headings:
Business students--Germany--Cologne--Social conditions.
Handelshochschule Köln (Germany)--History.
Social surveys--Germany--Cologne.
Princeton subject headings:
Business students--Germany (West)--Cologne--Socio-economic status.
Handelshochschule Köln (Germany)--History.
Social surveys--Germany (West)--Cologne.