qayum, a. (1965). development of a dual economy. the institute of national planning.
Chicagoスタイル(17版)引用形式qayum, a. Development of a Dual Economy. cairo: the institute of national planning, 1965.
MLA(9版)引用形式qayum, a. Development of a Dual Economy. the institute of national planning, 1965.
警告: この引用は必ずしも正確ではありません.