APA aipamena

Schade, L., & Helper, H. R. (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! Little, Morris.

Chicago Style aipamena

Schade, Louis, and Hinton Rowan Helper. 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, D.C.: Little, Morris, 1860.

MLA aipamena

Schade, Louis, and Hinton Rowan Helper. 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! Little, Morris, 1860.