Columbia subject headings:
Ahaggar (Algeria)--Antiquities.
Algeria--Antiquities.
Petroglyphs--Algeria--Ahaggar.
Harvard subject headings:
Ahaggar Mountains Region (Algeria)--Antiquities.
Algeria--Antiquities.
Petroglyphs--Algeria--Ahaggar Mountains Region.
Rock paintings--Algeria--Ahaggar Mountains Region.
Princeton subject headings:
Algeria--Antiquities.
Petroglyphs--Algeria--Ahaggar.