Columbia subject headings:
Kysis (Extinct city)--Geography.
Romans--Egypt--Kysis (Extinct city)
Water-supply--Egypt--Kysis (Extinct city)
Harvard subject headings:
Kysis Region (Extinct city)--Geography.
Romans--Egypt--Kysis Region (Extinct city)
Water-supply--Egypt--Kysis Region (Extinct city)
Princeton subject headings:
Egypt--Antiquities.
Excavations (Archaeology)--Egypt.