Columbia subject headings:
Action research--Germany--Hamburg.
Time management surveys--Germany--Hamburg.
Time management--Germany (West)--Case studies.
Time management--Germany--Hamburg.
Harvard subject headings:
Action research--Germany--Hamburg.
Time management surveys--Germany--Hamburg.
Time management--Germany (West)--Case studies.
Time management--Germany--Hamburg.
Princeton subject headings:
City and town life--Germany (West)--Hamburg metropolitan area--Research.
Hamburg metropolitan area (Germany)--Social conditions.
Sociology, Urban--Germany (West)--Hamburg metropolitan area--Research.