Ḥarrāz, M. R. (1977). Al- Uṣūl at-tārīḫīya li'l-muškila al-irītrīya. Maʿhad al-Buḥūṯ wa'd-Dirāsāt al-ʿArabīya.
Chicago Style (17th ed.) CitationḤarrāz, Muḥammad Raǧab. Al- Uṣūl At-tārīḫīya Li'l-muškila Al-irītrīya. al-Qāhira: Maʿhad al-Buḥūṯ wa'd-Dirāsāt al-ʿArabīya, 1977.
MLA (9th ed.) CitationḤarrāz, Muḥammad Raǧab. Al- Uṣūl At-tārīḫīya Li'l-muškila Al-irītrīya. Maʿhad al-Buḥūṯ wa'd-Dirāsāt al-ʿArabīya, 1977.
Warning: These citations may not always be 100% accurate.