Slavery - Extension to the territories - United States

Lincoln looks West : from the Mississippi tothe Pacific by: Project Muse; United States; Lincoln, Abraham (1809-1865); West (U.S.); Etulain, Richard W (Electronic resources)

Congress and the crisis of the 1850s by: Finkelman, Paul (1949-); United States Capitol Historical Society; Project Muse; Kennon, Donald R. (1948-); United States.; United States (Electronic resources)