qayum, a. (1965). development of a dual economy. the institute of national planning.
Čikaški stil citiranja (17. izdanje)qayum, a. Development of a Dual Economy. cairo: the institute of national planning, 1965.
MLA način citiranja (9. izdanje)qayum, a. Development of a Dual Economy. the institute of national planning, 1965.
Upozorenje: Ovi citati možda nisu uvijek 100% točni.