Afifi, M. M., Zakaria, S., & Farag, F. (1968). Bibliographical Guide to The UN Mimeographed Documents. The Institute of National Planning.
Cita Chicago (17th ed.)Afifi, Mahmoud M., Sohair Zakaria, i Farouk Farag. Bibliographical Guide to The UN Mimeographed Documents. Cairo: The Institute of National Planning, 1968.
Cita MLA (9th ed.)Afifi, Mahmoud M., et al. Bibliographical Guide to The UN Mimeographed Documents. The Institute of National Planning, 1968.