Não informado. (2018). Overseas Trade Statistics of the United Kingdom. Her Majesty's Stationery Office.
Chicago Style (17. basım) AtıfNão informado. Overseas Trade Statistics of the United Kingdom. London: Her Majesty's Stationery Office, 2018.
MLA (8th ed.) AtıfNão informado. Overseas Trade Statistics of the United Kingdom. Her Majesty's Stationery Office, 2018.
Uyarı: Bu alıntı herzaman %100 doğru olmayabilir..