APA (7th ed.) Citation

Šiblī Nuʿmānī, Rāšidulẖairī, & Sālim, M. (1956). Umar the Great: (the second caliph of Islam). Ashraf.

Chicago Style (17th ed.) Citation

Šiblī Nuʿmānī, Rāšidulẖairī, and Muḥammad Sālim. Umar the Great: (the Second Caliph of Islam). Lahore: Ashraf, 1956.

MLA (9th ed.) Citation

Šiblī Nuʿmānī, et al. Umar the Great: (the Second Caliph of Islam). Ashraf, 1956.