Columbia subject headings:
Architecture and children--Switzerland--Halen.
Halen (Switzerland)--History.
Planned communities--Switzerland--Halen.
Harvard subject headings:
Architecture and children--Switzerland--Halen.
Children and architecture--Switzerland--Siedlung Halen.
Halen (Switzerland)--Buildings, structures, etc.
Halen (Switzerland)--History.
New towns--Switzerland.
Planned communities--Switzerland--Halen.
Princeton subject headings: