Rhein-Ruhr Hafen Duisburg.
Verwaltungs-Verlag.
München : Verwaltungs-Verlag,
[1990?]
Includes index to "Duisburg-Hafen Ansiedler," ancillary map of Wanheimerort, advertisements, and col. ill.
Index, map of city region, and advertisements on verso.
Harbors