Citazione Stile APA (7a Edizione)

Shibli Numani, S. U. (1943). Omar the great (the second Caliph of Islam) (2nd ed.). Sh. Muhammad Asraf.

Citazione stile Chigago Style (17a edizione)

Shibli Numani, Shamsul' Ulama'. Omar the Great (the Second Caliph of Islam). 2nd ed. Lahore: Sh. Muhammad Asraf, 1943.

Citatione MLA (9a ed.)

Shibli Numani, Shamsul' Ulama'. Omar the Great (the Second Caliph of Islam). 2nd ed. Sh. Muhammad Asraf, 1943.