Ordeal of the Union. - Nevins, Allan, 1890-1971. (New York, Scribner, 1947)
v. 1. Fruits of manifest destiny, 1847-1852. A note on sources (p. 561-562)--v. 2. A house dividing, 1852-1857.
Keywords: Slavery -- United States; United States -- History -- 1849-1877.; United States -- History -- Civil War, 1861-1865 -- Causes