Columbia subject headings:
Automobile ownership--Germany--Rhein-Neckar-Kreis.
Commuting--Germany--Rhein-Neckar-Kreis.
Transportation--Germany--Rhein-Neckar-Kreis.
Harvard subject headings:
Automobile drivers--Germany--Rhein-Neckar-Kreis--Attitudes.
Choice of transportation.
Commuters--Germany--Rhein-Neckar-Kreis--Attitudes.
Commuting--Germany--Rhein-Neckar-Kreis.
Transportation, Automotive--Germany--Rhein-Neckar-Kreis.
Princeton subject headings: