APA aipamena

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

Chicago Style aipamena

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

MLA aipamena

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