Schade, L. (1860). A book for the "impending crisis"!: Appeal to the common sense and patriotism of the people of the United States. "Helperism" annihilated! The "irrepressible conflict" and its consequences! Washington, DC: Little, Morris, & Co..

Schade, Louis. A Book for the "impending Crisis"!: Appeal to the Common Sense and Patriotism of the People of the United States. "Helperism" Annihilated! The "irrepressible Conflict" and Its Consequences! Washington, DC: Little, Morris, & Co., 1860.

Schade, Louis. A Book for the "impending Crisis"!: Appeal to the Common Sense and Patriotism of the People of the United States. "Helperism" Annihilated! The "irrepressible Conflict" and Its Consequences! Washington, DC: Little, Morris, & Co., 1860.