Lings, M. (1991). Muhammad: His life based on the earliest sources. The Islamic Texts Society, Millat book centre.
Citazione stile Chigago Style (17a edizione)Lings, Martin. Muhammad: His Life Based on the Earliest Sources. Cambridge ; India: The Islamic Texts Society, Millat book centre, 1991.
Citatione MLA (8a ed.)Lings, Martin. Muhammad: His Life Based on the Earliest Sources. The Islamic Texts Society, Millat book centre, 1991.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.