Columbia subject headings:
Camels--Arabian Peninsula.
Horses--Arabian Peninsula.
Muṭayr (Arab tribe)
Harvard subject headings:
Camels--Arabian Peninsula.
Horses--Arabian Peninsula.
Muṭayr (Arab tribe).
Tribes--Arabian Peninsula--Social life and customs.
Princeton subject headings:
Camels--Arabian peninsula.
Horses--Arabian peninsula.
Muṭayr (Arab tribe)