El Gibaly, A. (1972). Economic and Statistical Considerations in the Formulation of Engel Curve and the Effect of Household size and Composition on Consumption. The Institute of National Planning.
Παραπομπή σε μορφή Chicago (17η εκδ.)El Gibaly, Azza. Economic and Statistical Considerations in the Formulation of Engel Curve and the Effect of Household Size and Composition on Consumption. Cairo: The Institute of National Planning, 1972.
Παραπομπή σε μορφή MLA (9th εκδ.)El Gibaly, Azza. Economic and Statistical Considerations in the Formulation of Engel Curve and the Effect of Household Size and Composition on Consumption. The Institute of National Planning, 1972.
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