Columbia subject headings:
Asher, Michael, 1953---Travel--Sahara.
Peru, Mariantonietta--Travel--Sahara.
Sahara--Description and travel.
Harvard subject headings:
Asher, Michael, 1953---Journeys--Sahara.
Peru, Mariantonietta--Journeys--Sahara.
Sahara--Description and travel.
Princeton subject headings:
Sahara--Description and travel.