Abdalla, I. S. E. (1960). The main pivots of the process of socio-economic development in the Arab World during coming decades 1980 to 2000. Arab Planning Institute.
Chicago-referens (17:e uppl.)Abdalla, Ibrahim S. E. The Main Pivots of the Process of Socio-economic Development in the Arab World During Coming Decades 1980 to 2000. Kuwait: Arab Planning Institute, 1960.
MLA-referens (9:e uppl.)Abdalla, Ibrahim S. E. The Main Pivots of the Process of Socio-economic Development in the Arab World During Coming Decades 1980 to 2000. Arab Planning Institute, 1960.
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