Cita APA (7th ed.)

Nasif, A. A. (1988). AL-‘ULA: On system : an historical and archaeological survey with special reference to its irrigatin. king saud university.

Cita Chicago (17th ed.)

Nasif, Abdallah Adam. AL-‘ULA: On System : An Historical and Archaeological Survey with Special Reference to Its Irrigatin. Riyadh: king saud university, 1988.

Cita MLA (9th ed.)

Nasif, Abdallah Adam. AL-‘ULA: On System : An Historical and Archaeological Survey with Special Reference to Its Irrigatin. king saud university, 1988.