Columbia subject headings:
Harvard subject headings:
Dirē Dawa (Ethiopia)--Antiquities.
Excavations (Archaeology)--Ethiopia--Dirē Dawa.
Plant remains (Archaeology)--Ethiopia--Dirē Dawa.
Porc-Epic Cave (Ethiopia)
Stone age--Ethiopia--Dirē Dawa.
Tools, Prehistoric--Ethiopia--Dirē Dawa.
Princeton subject headings:
Dirē Dawa (Ethiopia)--Antiquities.
Excavations (Archaeology)--Ethiopia--Dirē Dawa.
Mesolithic period--Ethiopia--Dirē Dawa.
Stone implements--Ethiopia--Dirē Dawa.