Barrow, T. C. (1967). Trade and empire; the British customs service in colonial America, 1660-1775. Harvard University Press.
Lua i Stíl Chicago (17ú heag.)Barrow, Thomas C. Trade and Empire; the British Customs Service in Colonial America, 1660-1775. Cambridge, Mass.: Harvard University Press, 1967.
Lua MLA (8ú heag.)Barrow, Thomas C. Trade and Empire; the British Customs Service in Colonial America, 1660-1775. Harvard University Press, 1967.
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