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.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)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.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)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.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.