Não informado. (1959). Monthly Statistics of Foreign Trade. Organization for Economic Co-Operation and Development, Department of Economic and Statistics.
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিNão informado. Monthly Statistics of Foreign Trade. Paris: Organization for Economic Co-Operation and Development, Department of Economic and Statistics, 1959.
M.L.A (8 ম সংস্করণ) উদ্ধৃতিNão informado. Monthly Statistics of Foreign Trade. Organization for Economic Co-Operation and Development, Department of Economic and Statistics, 1959.
সতর্কবাণী: সাইটেশন সবসময় 100% নির্ভুল হতে পারে না.