APA (7 ম সংস্করণ) উদ্ধৃতি

Tritton, A. (2002). Caliphs and their non-Muslim subjects: A critical study of the Covenant of `Umar. Idarah-I Adabiyat-I Delhi.

শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতি

Tritton, A.S. Caliphs and Their Non-Muslim Subjects: A Critical Study of the Covenant of `Umar. Idarah-I Adabiyat-I Delhi, 2002.

M.L.A (9 ম সংস্করণ) উদ্ধৃতি

Tritton, A.S. Caliphs and Their Non-Muslim Subjects: A Critical Study of the Covenant of `Umar. Idarah-I Adabiyat-I Delhi, 2002.