Columbia subject headings:
Excavations (Archaeology)--Turkmenistan.
Parthians.
Turkmenistan--Antiquities.
Harvard subject headings:
Excavations (Archaeology)--Turkmenistan.
Parthians.
Turkmenistan--Antiquities.
Princeton subject headings:
Excavations (Archaeology)--Turkmenistan.
Parthians.
Turkmenistan--Antiquities.