Columbia subject headings:
Harvard subject headings:
Helper, Hinton Rowan, 1829-1909. Impending crisis of the South.
Secession--Southern States.
Slavery--United States
United States--Politics and government--1857-1861.
Princeton subject headings:
Helper, Hinton Rowan, 1829-1909. Compendium of the impending crisis of the South.
Secession--Southern States.
Slavery--United States.
United States--Politics and government--1857-1861.