El-Imam, M. M. (1968). The Demand - Income Function - A Study in Aggregation. The Institute of National Planning.
Citazione stile Chigago Style (17a edizione)El-Imam, M. M. The Demand - Income Function - A Study in Aggregation. Cairo: The Institute of National Planning, 1968.
Citatione MLA (9a ed.)El-Imam, M. M. The Demand - Income Function - A Study in Aggregation. The Institute of National Planning, 1968.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.