MacGregor, J. (1971). Report by Mr MacGregor [for the Board of Trade] on commercial tariffs and regulations, resources and trade of the United States. Part 2 (1846). Irish University Press.
Lua i Stíl Chicago (17ú heag.)MacGregor, John. Report by Mr MacGregor [for the Board of Trade] on Commercial Tariffs and Regulations, Resources and Trade of the United States. Part 2 (1846). Dublin (81 Merrion Sq., Dublin 2): Irish University Press, 1971.
Lua MLA (8ú heag.)MacGregor, John. Report by Mr MacGregor [for the Board of Trade] on Commercial Tariffs and Regulations, Resources and Trade of the United States. Part 2 (1846). Irish University Press, 1971.
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