Columbia subject headings:
Harvard subject headings:
Ticino (Switzerland)--Description and travel--Bibliography.
Ticino (Switzerland)--History--Sources--Catalogs.
Ticino (Switzerland)--Pictorial works--Bibliography.
Travelers' writings--Bibliography.
Princeton subject headings:
Catalogs.
Prints, Swiss--Themes, motives--Catalogs.
Ticino (Switzerland)--In art--Catalogs.