Title: Dirāsāt fī jughrāfīyat Wādī al-Ṣafrāʼ, minṭaqat al-Madīnah al-Munawwarah, al-Mamlakah al-ʻArabīyah al-Saʻūdīyah
Description: On the geography of al-Ṣafrāʼ valley in Saudi Arabia.
Subjects: Valleys, Geography