APA-referens (7:e uppl.)

Weston, G. M. (1857). The progress of slavery in the United States. The Author.

Chicago-referens (17:e uppl.)

Weston, George M. The Progress of Slavery in the United States. Washington, D.C.: The Author, 1857.

MLA-referens (8:e uppl.)

Weston, George M. The Progress of Slavery in the United States. The Author, 1857.