Columbia subject headings:
Harvard subject headings:
Horstmar (Germany)--Historical geography--Maps.
Horstmar (Germany)--Historical geography.
Horstmar (Germany)--History.
Horstmar (Germany)--Maps.
North Rhine-Westphalia (Germany)--History
North Rhine-Westphalia (Germany)--Maps.
Princeton subject headings:
Horstmar (Germany)--Historical geography--Maps.
Horstmar (Germany)--Historical geography.
Horstmar (Germany)--History.
Horstmar (Germany)--Maps.
North Rhine-Westphalia (Germany)--History.
North Rhine-Westphalia (Germany)--Maps.