Ewieda, M. (1965). Directory to Periodicals at the I.N.P. Documentation Center. The Institute of National Planning.
Citazione stile Chigago Style (17a edizione)Ewieda, Mohammed. Directory to Periodicals at the I.N.P. Documentation Center. Cairo: The Institute of National Planning, 1965.
Citatione MLA (9a ed.)Ewieda, Mohammed. Directory to Periodicals at the I.N.P. Documentation Center. The Institute of National Planning, 1965.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.