Allam, S. T. (1972). Agricultural Prices: Bases of method and Control. معهد التخطيط القزمى.
Citação norma ChicagoAllam, Saad Taha. Agricultural Prices: Bases of Method and Control. القاهرة: معهد التخطيط القزمى, 1972.
Citação norma MLAAllam, Saad Taha. Agricultural Prices: Bases of Method and Control. معهد التخطيط القزمى, 1972.