Cita APA (7a ed.)

Ewieda, M., Zakaria, S., & Farag, F. (1968). Classified Index to Articles of the Periodicals for the years 1965 and 1966. The Institute of National Planning.

Cita Chicago Style (17a ed.)

Ewieda, Mohammed, Sohair Zakaria, y Farouk Farag. Classified Index to Articles of the Periodicals for the Years 1965 and 1966. Cairo: The Institute of National Planning, 1968.

Cita MLA (9a ed.)

Ewieda, Mohammed, et al. Classified Index to Articles of the Periodicals for the Years 1965 and 1966. The Institute of National Planning, 1968.