qayum, A. (1965). economic criteria for foreign loans. National Planning Institute.
Cita Chicago (17th ed.)qayum, A. Economic Criteria for Foreign Loans. cairo: National Planning Institute, 1965.
Cita MLA (9th ed.)qayum, A. Economic Criteria for Foreign Loans. National Planning Institute, 1965.
Atenció: Aquestes cites poden no estar 100% correctes.