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.
Цитирование в стиле Чикаго (17-е изд.)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.
Цитирование MLA (9-е изд.)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.