Youssef, M. Y. (1969). A Model for the Optimal use of the high dam project. The Institute of National Planning.
Chicago-referens (17:e uppl.)Youssef, Mohammed Yehia. A Model for the Optimal Use of the High Dam Project. Cairo: The Institute of National Planning, 1969.
MLA-referens (9:e uppl.)Youssef, Mohammed Yehia. A Model for the Optimal Use of the High Dam Project. The Institute of National Planning, 1969.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.