Columbia subject headings:
Calah (Extinct city)
Excavations (Archaeology)--Iraq.
Ivories, Assyro-Babylonian.
Harvard subject headings:
Calah (Extinct city)
Excavations (Archaeology)--Iraq
Ivories, Assyro-Babylonian.
Princeton subject headings:
Calah.
Iraq--Antiquities.
Ivories, Assyro-Babylonian.