APA (7th ed.) Citation

Helper, H. R. (1860). The impending crisis of the South: How to meet it (50th thousand.). A.B. Burdick.

Chicago Style (17th ed.) Citation

Helper, Hinton Rowan. The Impending Crisis of the South: How to Meet It. 50th thousand. New York: A.B. Burdick, 1860.

MLA (9th ed.) Citation

Helper, Hinton Rowan. The Impending Crisis of the South: How to Meet It. 50th thousand. A.B. Burdick, 1860.