bognar, j. (1965). the economic-political background of the planning of international trade. National Planning Institute.
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিbognar, jozsef. The Economic-political Background of the Planning of International Trade. cairo: National Planning Institute, 1965.
M.L.A (9 ম সংস্করণ) উদ্ধৃতিbognar, jozsef. The Economic-political Background of the Planning of International Trade. National Planning Institute, 1965.