Columbia subject headings:
Harvard subject headings:
Arabian Peninsula--Bibliography.
Civilization, Arab--Study and teaching--Bibliography.
Krachkovskiĭ, I. I︠U︡. (Ignatiĭ I︠U︡lianovich), 1883-1951--Bibliography.
Princeton subject headings:
Arabian Peninsula--Bibliography.
Krachkovskiĭ, I. I︠U︡. (Ignatiĭ I︠U︡lianovich), 1883-1951--Bibliography.