el- sayed, a. (1964). l' impot d' education propoition a conmenter. the institute of national planning.
Chicago-referens (17:e uppl.)el- sayed, atef. L' Impot D' Education Propoition a Conmenter. cairo: the institute of national planning, 1964.
MLA-referens (9:e uppl.)el- sayed, atef. L' Impot D' Education Propoition a Conmenter. the institute of national planning, 1964.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.