Great Britain. Customs Establishment & Great Britain. Public Record Office. (1960). Ledgers of Imports and Exports, America, 1768-1773: Records of imports and exports to and from Britain and its colonies. Public Record Office.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रGreat Britain. Customs Establishment और Great Britain. Public Record Office. Ledgers of Imports and Exports, America, 1768-1773: Records of Imports and Exports to and from Britain and Its Colonies. London: Public Record Office, 1960.
एमएलए (8वां संस्करण) प्रशस्ति पत्रGreat Britain. Customs Establishment और Great Britain. Public Record Office. Ledgers of Imports and Exports, America, 1768-1773: Records of Imports and Exports to and from Britain and Its Colonies. Public Record Office, 1960.
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