Allam, S. T. (1972). Agricultural Prices: Bases of method and Control. معهد التخطيط القزمى.
Cita Chicago (17th ed.)Allam, Saad Taha. Agricultural Prices: Bases of Method and Control. القاهرة: معهد التخطيط القزمى, 1972.
Cita MLA (9th ed.)Allam, Saad Taha. Agricultural Prices: Bases of Method and Control. معهد التخطيط القزمى, 1972.