Columbia subject headings:
Avicenna, 980-1037.
Soul.
Harvard subject headings:
Avicenna, 980-1037. Kitab an-nafs.
Philosophy, Medieval--Islamic influences.
Princeton subject headings:
Avicenna, 980-1037--Criticism and interpretation.
Avicenna, 980-1037. De anima.
Philosophy, Medieval.
Soul.