Youssef, M. Y. (1969). A Model for the Optimal use of the high dam project. The Institute of National Planning.
Lua i Stíl Chicago (17ú heag.)Youssef, Mohammed Yehia. A Model for the Optimal Use of the High Dam Project. Cairo: The Institute of National Planning, 1969.
Lua MLA (9ú heag.)Youssef, Mohammed Yehia. A Model for the Optimal Use of the High Dam Project. The Institute of National Planning, 1969.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.