Columbia subject headings:
Harvard subject headings:
Algeria--Antiquities.
Petroglyphs--Algeria--Tassili-n-Ajjer.
Tassili-n-Ajjer (Algeria)--Antiquities.
Princeton subject headings:
Algeria--Antiquities.
Petroglyphs--Algeria--Tassili-n-Ajjer.
Tassili-n-Ajjer (Algeria)--Antiquities.