United Nations. Industrial Development Organization. (1982). Changing patterns of trade in world industry: An empirical study on revealed comparative advantage. United Nations.
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিUnited Nations. Industrial Development Organization. Changing Patterns of Trade in World Industry: An Empirical Study on Revealed Comparative Advantage. United Nations, 1982.
M.L.A (9 ম সংস্করণ) উদ্ধৃতিUnited Nations. Industrial Development Organization. Changing Patterns of Trade in World Industry: An Empirical Study on Revealed Comparative Advantage. United Nations, 1982.
সতর্কবাণী: সাইটেশন সবসময় 100% নির্ভুল হতে পারে না.