Columbia subject headings:
Africa, North--Description and travel.
Ḥaḍramawt (Yemen : Province)--Description and travel.
Harvard subject headings:
Africa, North--Description and travel.
Ḥaḍramawt (Yemen : Province)--Description and travel.
Princeton subject headings:
Africa, North--Description and travel.
Ḥaḍramawt (Yemen : Province)--Description and travel.