Columbia subject headings:
Harvard subject headings:
Antiquities, Prehistoric--Sistan (Iran and Afghanistan)
Sistan (Iran and Afghanistan)--Antiquities.
Princeton subject headings:
Afghanistan--Antiquities.
Excavations (Archaeology)--Afghanistan.
Excavations (Archaeology)--Iran.
Iran--Antiquities.
Shahr-i Sokhta (Ancient city).
Sistan (Afghanistan and Iran).