Columbia subject headings:
Valletta (Malta)--Description and travel.
Valletta (Malta)--History.
Valletta (Malta)--Pictorial works.
Harvard subject headings:
Valletta (Malta)--Description and travel.
Valletta (Malta)--History.
Valletta (Malta)--Pictorial works.
Princeton subject headings:
Valletta (Malta)--Description and travel.
Valletta (Malta)--History.
Valletta (Malta)--Pictorial works.