Dyfyniad APA

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

Dyfyniad Arddull Chicago

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

Dyfyniad MLA

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

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