Columbia subject headings:
Avicenna, 980-1037. Ishārāt wa-al-tanbīhāt.
Islamic philosophy.
Harvard subject headings:
Avicenna, 980-1037. Ishārāt wa-al-tanbīhāt.
Islamic philosophy.
Princeton subject headings:
Avicenna, 980-1037. Ishārāt wa-al-tanbīhāt.
Islamic philosophy.