Columbia subject headings:
Baghdad (Iraq)--Intellectual life--History.
Islamic learning and scholarship--Iraq--Baghdad.
Harvard subject headings:
Baghdad (Iraq)--Intellectual life--History.
Islamic Empire--Intellectual life.
Islamic learning and scholarship--Iraq--Baghdad.
Islamic learning and scholarship--Islamic Empire.
Princeton subject headings:
Baghdad (Iraq)--Intellectual life--History.
Islamic Empire--Intellectual life.
Islamic learning and scholarship--Iraq--Baghdad.
Islamic learning and scholarship--Islamic Empire.