Ewieda, M. (1965). Directory to Periodicals at the I.N.P. Documentation Center. The Institute of National Planning.
Chicago-referens (17:e uppl.)Ewieda, Mohammed. Directory to Periodicals at the I.N.P. Documentation Center. Cairo: The Institute of National Planning, 1965.
MLA-referens (9:e uppl.)Ewieda, Mohammed. Directory to Periodicals at the I.N.P. Documentation Center. The Institute of National Planning, 1965.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.