Citazione APA

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

Stile di citazione Chicago

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

Citazione MLA

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