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