el- sayed, a. (1964). l' impot d' education propoition a conmenter. the institute of national planning.
Citazione stile Chigago Style (17a edizione)el- sayed, atef. L' Impot D' Education Propoition a Conmenter. cairo: the institute of national planning, 1964.
Citatione MLA (9a ed.)el- sayed, atef. L' Impot D' Education Propoition a Conmenter. the institute of national planning, 1964.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.