Columbia subject headings:
Allgäu (Germany)--Guidebooks.
Architecture--Germany--Allgäu--Guidebooks.
Harvard subject headings:
Allgäu (Germany)--Guidebooks.
Architecture--Germany--Allgäu--Guidebooks.
Princeton subject headings:
Allgäu (Germany)--Guidebooks.
Architecture--Germany (West)--Allgäu--Guidebooks.