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Gezira : a story of development in the Sudan
Gaitskell, Arthur, (1959)
Economic problems of chemical pest control in the irrigated cotton production of the Sudan Gezira
Bartsch, Reinhart, (1975)
Die Organisation der Schädlingsbekämpfung im Baumwollanbau des Gezira-Managil-Projekts im Sudan
Bartsch, Reinhard, (1976)
Linear programming for increasing farm profits : a Yorkshire example
Simpson, I. G., (1960)
New approachers to irrigated farming in the Sudan : organization and management
Simpson, I. G., (1970)
New Approaches to Irrigated Farming in the Sudan: Organization and Management