1
by Nasr, Seyyed Hossein, 1933-
Published 2001
2
by Barr, Michael D.
Published 2000
3
by Abaza, Mona
Published 1993
4
by Lings, Martin
Published 1983
5
by Muhammad Husein Haykal
Published 1993
6
by Borton, Hugh
Published 2002