Columbia subject headings:
Schlotter, Eberhard--Travel--Italy--Umbria.
Umbria (Italy)--Description and travel.
Umbria (Italy)--In art.
Harvard subject headings:
Schlotter, Eberhard--Exhibitions.
Schlotter, Eberhard--Journeys--Italy--Umbria--Exhibitions.
Umbria (Italy)--In art--Exhibitions.
Princeton subject headings: