Title: Dirāsah haydrūmūrfūmitrīyah li-taqdīr ḥajm siyūl ḥawḍ Wādī ʻItwad bi-al-Mamlakah al-ʻArabīyah al-Saʻūdīyah
Subjects: Geomorphology, Floods, Hydrology
Places: Saudi Arabia, Wadi Watershed ʻItwad