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.
Chicago-referens (17:e uppl.)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.
MLA-referens (9:e uppl.)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.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.