W. Montgomery Watt. (1969). Muhammad: Prophet and statesman. Oxford University Press.
Lua i Stíl Chicago (17ú heag.)W. Montgomery Watt. Muhammad: Prophet and Statesman. London: Oxford University Press, 1969.
Lua MLA (9ú heag.)W. Montgomery Watt. Muhammad: Prophet and Statesman. Oxford University Press, 1969.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.