APA-viite (7. p.)
Lings, M. Muhammad: His Life Based on the Earliest Sources. Inner Traditions.
Chicago-viite (17. p.)
Lings, Martin. Muhammad: His Life Based on the Earliest Sources. Vermont: Inner Traditions.
MLA-viite (9. p.)
Lings, Martin. Muhammad: His Life Based on the Earliest Sources. Inner Traditions.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.