Não informado. (2018). Overseas Trade Statistics of the United Kingdom. Her Majesty's Stationery Office.
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিNão informado. Overseas Trade Statistics of the United Kingdom. London: Her Majesty's Stationery Office, 2018.
M.L.A (8 ম সংস্করণ) উদ্ধৃতিNão informado. Overseas Trade Statistics of the United Kingdom. Her Majesty's Stationery Office, 2018.
সতর্কবাণী: সাইটেশন সবসময় 100% নির্ভুল হতে পারে না.