Germanus, G. (1978). Modern movements in the world of Islam. al-Biruni.
Lua i Stíl Chicago (17ú heag.)Germanus, Gyula. Modern Movements in the World of Islam. Lahore: al-Biruni, 1978.
Lua MLA (8ú heag.)Germanus, Gyula. Modern Movements in the World of Islam. al-Biruni, 1978.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.