Citation
Morrison, Keith, Manion, Lawrence, Cohen, Louis. Manāhij al-Baḥth fī al-ʿUlūm al-Ijtimāʿiyya wa-l-Tarbawiyya. Cairo: al-Dār al-ʿArabiyya li-l-Nashr wa-l-Tawzīʿ, 1990.
Morrison, Keith, Manion, Lawrence, Cohen, Louis. Manāhij al-Baḥth fī al-ʿUlūm al-Ijtimāʿiyya wa-l-Tarbawiyya. Cairo: al-Dār al-ʿArabiyya li-l-Nashr wa-l-Tawzīʿ, 1990.